U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

You searched for: Publication year rev 7981-2019 Remove constraint Publication year rev: 7981-2019 Subject arsenic Remove constraint Subject: arsenic
Start Over

Search

2,098  Search Results

« Previous | 1 - 100 of 2,098 |
Number of results to display per page

Search Results

1. (2S)-5,6,7,3',4'-pentamethoxyflavanone, a citrus polymethoxyflavone ameliorates arsenic- and cigarette smoke extract- induced cytotoxicity via activating Nrf2-mediated defense system

Author:
Ming-Xing Zhou; Guo-Hui Li; Xue-Yi Wu; Lin Sun; Yan-Ru Li; Wen-Jing Yang; Dong-Mei Ren; Xiao-Ning Wang; Lan Xiang; Hong-Xiang Lou; Tao Shen
Source:
Journal of functional foods 2019 pp. -
ISSN:
1756-4646
Subject:
Citrus; arsenic; cytotoxicity; enzyme inhibitors; epithelial cells; genes; human diseases; lungs; mitogen-activated protein kinase; oxidative stress; pathogenesis; phosphatidylinositol 3-kinase; polymethoxyflavones; protein kinase C; sodium; toxic substances; ubiquitination
Abstract:
... Exogenous toxicants (e.g. arsenic, cigarette smoke), trigger oxidative stress, and initiate the pathogenesis of many human diseases. Induction of nuclear factor E2-related factor 2 (Nrf2) counteract exogenous toxicant-induced oxidative insults. Using a high-throughput screen, we firstly identified a citrus polymethoxyflavone, (2S)-5,6,7,3',4'-pentamethoxyflavanone (PMF), to be an Nrf2 activator, a ...
DOI:
10.1016/j.jff.2019.01.019

2. 200-year industrial archaeological record preserved in an Isle of Man saltmarsh sediment sequence: Geochemical and radiochronological evidence

Author:
Ian W. Croudace; Phillip A. Teasdale; Andrew B. Cundy
Source:
Quaternary international 2019 v.514 pp. 195-203
ISSN:
1040-6182
Subject:
arsenic; cesium; coastal sediments; coasts; copper; highlands; hydrology; lead; mining; models; plutonium; radionuclides; salt marshes; upland soils; watersheds; zinc; Irish Sea; Isle of Man
Abstract:
... The Isle of Man, situated in the central Irish Sea, was a significant centre for Pb and Zn mineral extraction during the Industrial Revolution. Comminuted mining debris from the East Snaefell and North Laxey mining areas was transported, through hydrological action, from upland catchments to the coast. This study focuses on an eastern coastal sediment sink and a salt marsh sediment sequence from P ...
DOI:
10.1016/j.quaint.2018.09.045

3. 24-Epibrassinolide promotes arsenic tolerance in Arabidopsis thaliana L. by altering stress responses at biochemical and molecular level

Author:
Yonca Surgun-Acar; Fahriye Zemheri-Navruz
Source:
Journal of plant physiology 2019 v.238 pp. 12-19
ISSN:
0176-1617
Subject:
Arabidopsis thaliana; antioxidant activity; antioxidants; arsenates; arsenic; biosynthesis; catalase; enzyme activity; gene expression regulation; genes; heat shock proteins; leaves; malondialdehyde; messenger RNA; proline; stress response; superoxide dismutase; transcription (genetics)
Abstract:
... In this study, the effect of 24-Epibrassinolide (EBL) on antioxidant system in Arabidopsis thaliana were investigated under arsenate [As(V)] stress. The enzyme activity of superoxide dismutase (SOD) and catalase (CAT), total antioxidant status, malondialdehyde (MDA) level and free proline content, as well as the expression levels of SOD isoforms (Cu-ZnSODs, FeSODs and MnSOD), CAT isoforms (CAT1, C ...
DOI:
10.1016/j.jplph.2019.05.002

4. A 300-Year High-Resolution Greenland Ice Record of Large-Scale Atmospheric Pollution by Arsenic in the Northern Hemisphere

Author:
Khanghyun Lee; Changhee Han; Sang-Bum Hong; Seong-Joon Jun; Yeongcheol Han; Cunde Xiao; Zhiheng Du; Soon Do Hur; Jong Ik Lee; Claude F. Boutron; Sungmin Hong
Source:
Environmental science & technology 2019 v.53 no.22 pp. 12999-13008
ISSN:
1520-5851
Subject:
air pollution; arsenic; coal; combustion; ice; snow; technology; toxicity; China; Europe; Greenland; North America
Abstract:
... We report the first high-resolution record of arsenic (As) observed in Greenland snow and ice for the periods 1711–1970 and 2003–2009 AD. The results show well-defined large-scale atmospheric pollution by this toxic element in the northern hemisphere, beginning as early as the 18th century. The most striking feature is an abrupt, unprecedented enrichment factor (EF) peak in the late 1890s, with an ...
DOI:
10.1021/acs.est.9b01805

5. Evernia Goes to School: Bioaccumulation of Heavy Metals and Photosynthetic Performance in Lichen Transplants Exposed Indoors and Outdoors in Public and Private Environments

Author:
Luca Paoli; Zuzana Fačkovcová; Anna Guttová; Caterina Maccelli; Katarína Kresáňová; Stefano Loppi
Source:
Plants 2019 v.8 no.5 pp. -
ISSN:
2223-7747
Subject:
Parmeliaceae; air quality; aluminum; antimony; arsenic; autumn; bioaccumulation; buildings; cadmium; calcium; children; chlorophyll; chromium; copper; environmental monitoring; fluorescence; heavy metals; indicator species; iron; lead; lichens; photosynthesis; physiological state; rural areas; schools; urban areas; vanadium; zinc; Slovakia
Abstract:
... Recently indoor air quality (IAQ) has become a key issue, especially in schools, where children spend most of the day. Only in a few cases IAQ was investigated using lichens as biomonitors. During autumn 2017, lichens (Evernia prunastri) were exposed for two months indoors and outdoors in public (schools) and private (dwellings) environments, in both rural and urban areas of Slovakia. The bioaccum ...
DOI:
10.3390/plants8050125
PubMed:
31086106
PubMed Central:
PMC6571755

6. ABCA1 Is Coordinated with ABCB1 in the Arsenic-Resistance of Human Cells

Author:
Tong Zhou; Wanqiang Niu; Zhen Yuan; Shuli Guo; Yang Song; Chunhong Di; Xiaoling Xu; Xiaohua Tan; Lei Yang
Source:
Applied biochemistry and biotechnology 2019 v.187 no.1 pp. 365-377
ISSN:
0273-2289
Subject:
P-glycoproteins; RNA interference; arsenic; cell lines; drug resistance; gene targeting; humans; lipids; plasma membrane; poisoning; resistance genes; survival rate; toxic substances
Abstract:
... Arsenic is one of the most widespread global environmental toxicants associated with endemic poisoning. ATP-binding cassette (ABC) proteins are transmembrane channels that transport and dispose of lipids and metabolic products across the plasma membrane. The majority of ABC family members (including ABCB1 and ABCC1) are reported to play a role in the development of arsenic and drug resistance in m ...
DOI:
10.1007/s12010-018-2800-9

7. The AKOBEN programme as a tool towards responsible gold mining in Ghana, business as usual or a commitment towards sustainable development

Author:
Kenneth Bedu-Addo; Martha Ofori-Kuragu; Abeiku Arthur
Source:
Heliyon 2019 v.5 no.6 pp. e01925
ISSN:
2405-8440
Subject:
air; aquatic organisms; arsenic; carbon dioxide; compliance; electrical conductivity; environmental assessment; environmental audits; environmental performance; gold; greenhouses; habitats; issues and policy; methylmercury compounds; nitrogen; pH; public health; recreation; rivers; sulfur; sustainable development; time series analysis; toxicity; water quality; Ghana
Abstract:
... The AKOBEN Programme, an environmental performance rating and disclosure initiative that show the environmental performance of gold mining firms with reference to their daily activities post environmental impact assessment and issuance of an environmental permit was introduced in Ghana to serve as a monitoring and verification tool towards environmental compliance and responsible mining. As to whe ...
DOI:
10.1016/j.heliyon.2019.e01925
PubMed:
31304413
PubMed Central:
PMC6603283

8. Abnormal chromosome assessment of snakehead fish (Channa striata) affected by heavy metals from a reservoir near an industrial factory

Author:
Chatpong Khamlerd; Bundit Tengjaroenkul; Lamyai Neeratanaphan
Source:
International journal of environmental studies 2019 v.76 no.4 pp. 648-662
ISSN:
1029-0400
Subject:
Channa striata; arsenic; atomic absorption spectrometry; cadmium; chromium; chromosome number; chromosomes; copper; diploidy; heavy metals; iron; lead; manganese; nickel; sediments; water quality standards; zinc; Thailand
Abstract:
... This study aimed to investigate nine heavy metal concentrations (As, Cd, Cr, Pb, Cu, Fe, Zn, Mn and Ni) in water, sediment and snakehead fish (Channa striata) and to identify abnormal chromosomes in C. striata from a reservoir near an industrial factory and a reference area. Heavy metal concentrations were measured by inductively coupled plasma optical emission spectrometry (ICP-OES). The metal co ...
DOI:
10.1080/00207233.2019.1580033

9. Accumulation and distribution of arsenic and cadmium in winter wheat (Triticum aestivum L.) at different developmental stages

Author:
Gao Ling Shi; Dao Jun Li; Yu Feng Wang; Chang Hao Liu; Zhu Bing Hu; Lai Qing Lou; Zed Rengel; Qing Sheng Cai
Source:
Science of the total environment 2019 v.667 pp. 532-539
ISSN:
0048-9697
Subject:
Triticum aestivum; arsenic; cadmium; cultivars; developmental stages; filling period; food crops; humans; leaves; plant growth; roots; shoots; stems; tillering; toxicity; winter wheat
Abstract:
... Arsenic (As) and cadmium (Cd) are known to be toxic to humans, and elevated concentrations have been documented in food crops worldwide. However, little is known regarding their uptake, translocation, and distribution in wheat plants during plant development. A series of experiments were conducted to investigate the spatial distribution and dynamics of As and Cd in two wheat cultivars (cv. JN12 an ...
DOI:
10.1016/j.scitotenv.2019.02.394

10. Accumulation of Heavy Metals by Amur Bay Sediments (the Sea of Japan) under the Effect of Biochemical Factors

Author:
D. M. Polyakov; A. A. Mar’yash; A. V. Mozherovskii
Source:
Water resources 2019 v.46 no.2 pp. 209-213
ISSN:
0097-8078
Subject:
arsenic; cadmium; chromium; cobalt; copper; heavy metals; humic substances; hydroxides; iron; lead; manganese; molybdenum; nickel; rivers; sediments; sorption; vanadium; zinc; Sea of Japan
Abstract:
... The average concentrations of elements Fe, Mn, Zn, Pb, Cu, Cr, V, Co, Cd, Ni, As, and Mo in the subcolloidal fraction of bottom sediments were determined in the northern and central parts of the Amur Bay. The concentrations of metals Pb, Co, Ni, Zn, Cr, V, and As in bottom sediments subject to direct influence of the Razdol’naya River were shown to increase by 5–17% because of their sorption on Fe ...
DOI:
10.1134/S0097807819020118

11. Accumulation of trace elements in feathers of the Kentish plover Charadrius alexandrinus

Author:
Marco Picone; Fabiana Corami; Carlo Gaetan; Marco Basso; Alberto Battiston; Lucio Panzarin; Annamaria Volpi Ghirardini
Source:
Ecotoxicology and environmental safety 2019 v.179 pp. 62-70
ISSN:
0147-6513
Subject:
Charadrius alexandrinus; arsenic; birds; cadmium; chromium; coasts; cobalt; conservation status; copper; environmental exposure; feathers; lead; littoral zone; mercury; nickel; reproductive success; risk; tail; toxicity; vanadium; zinc
Abstract:
... A non-invasive study of trace element accumulation in tail feathers of the Kentish plover (Charadrius alexandrinus) was performed along the coastline of the northern littoral strip of the Venice Lagoon, with the aim to verify whether contamination may be a factor affecting conservation status of Kentish plover populations.Body burdens in feathers of 11 trace elements including toxic metals/metallo ...
DOI:
10.1016/j.ecoenv.2019.04.051

12. Accumulation of uranium and heavy metals in the soil–plant system in Xiazhuang uranium ore field, Guangdong Province, China

Author:
Zhenghai Wang; Haoyang Qin; Juan Wang
Source:
Environmental geochemistry and health 2019 v.41 no.6 pp. 2413-2423
ISSN:
0269-4042
Subject:
Castanopsis; Liriodendron; Rhus; Sapium; arsenic; cadmium; cobalt; copper; environmental factors; heavy metals; lead; leaves; manganese; mining; molybdenum; nickel; remediation; soil; soil pollution; soil sampling; toxicity; uranium; zinc; China
Abstract:
... Plants that have grown for many years in the special environmental conditions prevailing in mining areas are naturally screened and show strong capacity to adapt to their environment. The present study investigated the enrichment characteristics of U and other heavy metals (As, Cu, Pb, Mn, Mo, Zn, Cd, Co, and Ni) in the soil–plant system in Xiazhuang uranium mine. Four dominant plants (Castanopsis ...
DOI:
10.1007/s10653-019-00286-7

13. Accumulation risk and sources of heavy metals in supratidal wetlands along the west coast of the Bohai Sea

Author:
Fude Liu; Bowen Zheng; Yi Zheng; Xue Mo; Desheng Li
Source:
RSC advances 2019 v.9 no.53 pp. 30615-30627
ISSN:
2046-2069
Subject:
aluminum; anthropogenic activities; arsenic; atmospheric deposition; cadmium; chromium; coasts; copper; heavy metals; iron; lead; manganese; nickel; pollution; risk; soil parent materials; soil weathering; wetlands; zinc; Yellow Sea
Abstract:
... The heavy metals Al, Cr, Cu, Ni, Pb, Zn, Fe, Mn, As, and Cd in the rainfall-driven supratidal wetlands along the west coast of the Bohai Sea (the areas are named site 1, site 2, site 3, and site 4 from south to north in the gradient in this study) are tested for their accumulation risks and sources. Results show that the distribution and enrichment of the heavy metals in the supratidal wetlands ar ...
DOI:
10.1039/c9ra05332h

14. Accumulation, ecological-health risks assessment, and source apportionment of heavy metals in paddy soils: A case study in Hanzhong, Shaanxi, China

Author:
Ran Xiao; Di Guo; Amjad Ali; Shenshen Mi; Tao Liu; Chunyan Ren; Ronghua Li; Zengqiang Zhang
Source:
Environmental pollution 2019 v.248 pp. 349-357
ISSN:
0269-7491
Subject:
agricultural soils; arsenic; basins; cadmium; case studies; coal; combustion; copper; ecosystems; environmental health; fertilizers; food security; heavy metals; human health; irrigation water; lead; mercury; paddy soils; pollution; rice; risk; risk assessment; soil sampling; transportation; zinc; China
Abstract:
... Contamination of agricultural soil by heavy metals has become a global issue concerning food security and human health risk. In this study, a soil investigation was conducted to evaluate metals accumulation, potential ecological and health risks as well as to identify sources of metals in paddy soils in Hanzhong City, which is located in a sedimentary basin. Ninety-two (92) surface soil samples (b ...
DOI:
10.1016/j.envpol.2019.02.045

15. Accumulation, sources and pollution of heavy metals in the sediments of coastal tidal flats in the North Jiangsu Radial Sand Ridges, China

Author:
Kun Meng; Min Xu; Yifei Zhao; Fei Li; Wenjian Xu; Ye Chen
Source:
Environmental earth sciences 2019 v.78 no.5 pp. 128
ISSN:
1866-6280
Subject:
anthropogenic activities; arsenic; chromium; copper; heavy metals; industrialization; industry; lead; multivariate analysis; nickel; pollution; principal component analysis; river deltas; sand; zinc; China; Yellow River
Abstract:
... In 2014, three sediment cores were collected from the northern [Xinyanggang (XYG)], middle [Chuandonggang (CDG)], and southern [Xiaoyangkou (XYK)] parts of the coastal tidal flats of the North Jiangsu radial sand ridges (NJRSR), East China. The grain size and contents of heavy metals (Cu, Zn, Cr, Ni, Pb and As) in the cores were detected. The features of sediments and the accumulation of heavy met ...
DOI:
10.1007/s12665-019-8125-3

16. Accumulation, temporal variation, source apportionment and risk assessment of heavy metals in agricultural soils from the middle reaches of Fenhe River basin, North China

Author:
Minxia Liu; Zhiqiang Han; Yuyi Yang
Source:
RSC advances 2019 v.9 no.38 pp. 21893-21902
ISSN:
2046-2069
Subject:
adults; agricultural soils; arsenic; cadmium; carcinogenicity; children; chromium; coal; combustion; copper; emissions; farming systems; heavy metals; human health; lead; mercury; neoplasms; nickel; nonpoint source pollution; risk; risk assessment; soil quality; soil sampling; temporal variation; watersheds; zinc; China
Abstract:
... The Fenhe River basin is the main agricultural and industrial developed area in Shanxi province, China. In recent years, agricultural non-point source pollution in the Fenhe River basin intensified, threatening soil quality and safety in the area. Accumulation of eight heavy metals (HMs) including chromium (Cr), nickel (Ni), copper (Cu), zinc (Zn), arsenic (As), cadmium (Cd), lead (Pb) and mercury ...
DOI:
10.1039/c9ra03479j

17. Accumulation, transport and toxicity of arsenic in the Sundarbans mangrove, India

Author:
Sanjay Kumar Mandal; Raghab Ray; Aridane G. González; Oleg S. Pokrovsky; Vasileios Mavromatis; Tapan Kumar Jana
Source:
Geoderma 2019 v.354 pp. 113891
ISSN:
0016-7061
Subject:
advection; anthropogenic activities; arsenic; belowground biomass; bioaccumulation; coasts; dust; ecosystems; ecotoxicology; estuaries; metals; models; plant litter; pollution; sediments; toxicity; Bay of Bengal; India
Abstract:
... Arsenic (As), a toxic element is a concern for the habitants in and around the coastal areas of West Bengal (India) where world's largest Sundarbans mangrove is situated. Little is known about the potential of these mangroves in storing As within their biomass and transporting to the Bay of Bengal. A comprehensive yearly data of above ground and below ground biomass (AGB, BGB), and exchange fluxes ...
DOI:
10.1016/j.geoderma.2019.113891

18. Accuracy of methods for reporting inorganic element concentrations and radioactivity in oil and gas wastewaters from the Appalachian Basin, U.S. based on an inter-laboratory comparison

Author:
T. L. Tasker; W. D. Burgos; M. A. Ajemigbitse; N. E. Lauer; A. V. Gusa; M. Kuatbek; D. May; J. D. Landis; D. S. Alessi; A. M. Johnsen; J. M. Kaste; K. L. Headrick; F. D. H. Wilke; M. McNeal; M. Engle; A. M. Jubb; R. D. Vidic; A. Vengosh; N. R. Warner
Source:
Environmental science 2019 v.21 no.2 pp. 224-241
ISSN:
2050-7895
Subject:
arsenic; atomic absorption spectrometry; basins; calibration; cations; chromium; copper; data quality; environmental protection; lead; monitoring; nickel; oils; radioactivity; radium; radon; sediments; sludge; wastewater; zinc; United States
Abstract:
... Accurate and precise analyses of oil and gas (O&G) wastewaters and solids (e.g., sediments and sludge) are important for the regulatory monitoring of O&G development and tracing potential O&G contamination in the environment. In this study, 15 laboratories participated in an inter-laboratory comparison on the chemical characterization of three O&G wastewaters from the Appalachian Basin and four so ...
DOI:
10.1039/c8em00359a

19. Achieving arsenic concentrations of <1 μg/L by Fe(0) electrolysis: The exceptional performance of magnetite

Author:
C.M. van Genuchten; T. Behrends; S.L.S. Stipp; K. Dideriksen
Source:
Water research 2019 pp. -
ISSN:
0043-1354
Subject:
World Health Organization; X-ray absorption spectroscopy; arsenic; electrocoagulation; electrolysis; magnetite; pH; research; sorption; water; water treatment; water utilities; Netherlands
Abstract:
... Consumption of drinking water containing arsenic at concentrations even below the World Health Organization provisional limit of 10 μg/L can still lead to unacceptable health risks. Consequently, the drinking water sector in the Netherlands has recently agreed to target 1 μg/L of arsenic in treated water. Unfortunately, in many poor, arsenic-affected countries, the costs and complexity of current ...
DOI:
10.1016/j.watres.2019.115170

20. Acid mine drainage affects the diversity and metal resistance gene profile of sediment bacterial community along a river

Author:
Xiaohui Zhang; Song Tang; Mao Wang; Weimin Sun; Yuwei Xie; Hui Peng; Aimin Zhong; Hongling Liu; Xiaowei Zhang; Hongxia Yu; John P. Giesy; Markus Hecker
Source:
Chemosphere 2019 v.217 pp. 790-799
ISSN:
0045-6535
Subject:
Halomonas; Planococcaceae; acid mine drainage; arsenic; bacterial communities; byproducts; cadmium; community structure; copper; high-throughput nucleotide sequencing; lead; lotic systems; metal tolerance; mining; pH; pollution; resistance genes; rivers; salinity; sediments; sulfates
Abstract:
... Acid mine drainage (AMD) is one of the most hazardous byproducts of some types of mining. However, research on how AMD affects the bacterial community structure of downstream riverine ecosystems and the distribution of metal resistance genes (MRGs) along pollution gradient is limited. Comprehensive geochemical and high-throughput next-generation sequencing analyses can be integrated to characteriz ...
DOI:
10.1016/j.chemosphere.2018.10.210

21. Acid-extractable heavy metals in PM2.5 over Xi’an, China: seasonal distribution and meteorological influence

Author:
Pingping Liu; Yiling Zhang; Tiantian Wu; Zhenxing Shen; Hongmei Xu
Source:
Environmental science and pollution research international 2019 v.26 no.33 pp. 34357-34367
ISSN:
0944-1344
Subject:
air pollution; arsenic; atmospheric pressure; barium; bioavailability; cadmium; coal; cobalt; combustion; copper; dust; factor analysis; heavy metals; lead; manganese; nickel; particulates; relative humidity; seasonal variation; spring; sulfur dioxide; summer; temperature; titanium; vanadium; wind speed; winter; zinc; China
Abstract:
... To investigate the acid-extractable heavy metals in fine particulate matter (PM₂.₅) over Xi’an, China, 24-h PM₂.₅ samples were collected every 3 days from December 2015 through November 2016. The bioavailable fraction, termed here the bioavailability index (BI), of PM₂.₅-bound metal (As, Ba, Cd, Co, Cu, Mn, Ni, Pb, Ti, V, and Zn) and potential influencing factors, including relative humidity, temp ...
DOI:
10.1007/s11356-019-06366-6

22. Active and passive biosorption of Pb(II)using live and dead biomass of marine bacterium Bacillus xiamenensis PbRPSD202: Kinetics and isotherm studies

Author:
Ranjan Kumar Mohapatra; Pankaj Kumar Parhi; Sony Pandey; Birendra Kumar Bindhani; Hrudayanath Thatoi; Chitta Ranjan Panda
Source:
Journal of environmental management 2019 v.247 pp. 121-134
ISSN:
0301-4797
Subject:
Bacillus (bacteria); Fourier transform infrared spectroscopy; adsorption; aquatic bacteria; arsenic; biomass; bioremediation; biosorbents; biosorption; cadmium; chromium; copper; energy-dispersive X-ray analysis; heavy metals; ions; kinetics; lead; ligands; marine environment; metal tolerance; models; nickel; pH; phenotype; ribosomal RNA; scanning electron microscopy; sequence analysis; sodium chloride; sorption isotherms; temperature; toxicity; transmission electron microscopy; zinc
Abstract:
... A highly lead(II) resistant (up to 2200 mg/l) bacterium PbRPSD202 was selected among 210 lead resistant bacteria isolated from marine environment of Paradeep Port, Odisha for possible biosoption of toxic Pb (II) ions from metals polluted environments. The bacterium was identified as Bacillus xiamenensis following the phenotypic as well as 16S rRNA gene sequence analysis. In addition to Pb(II), it ...
DOI:
10.1016/j.jenvman.2019.06.073

23. Active learning in automated text classification: a case study exploring bias in predicted model performance metrics

Author:
Arun Varghese; Tao Hong; Chelsea Hunter; George Agyeman-Badu; Michelle Cawley
Source:
Environment systems & decisions 2019 v.39 no.3 pp. 269-280
ISSN:
2194-5403
Subject:
arsenic; artificial intelligence; automation; bias; case studies; cost effectiveness; data collection; experts; health effects assessments; human health; model validation; models; prediction; risk assessment; toxicology
Abstract:
... Machine learning has emerged as a cost-effective innovation to support systematic literature reviews in human health risk assessments and other contexts. Supervised machine learning approaches rely on a training dataset, a relatively small set of documents with human-annotated labels indicating their topic, to build models that automatically classify a larger set of unclassified documents. “Active ...
DOI:
10.1007/s10669-019-09717-3

24. Active treatment of acidic mine water to minimize environmental impacts in a densely populated downstream area

Author:
Junhao Qin; Xiaoying Cui; Hua Yan; Wenzhou Lu; Chuxia Lin
Source:
Journal of cleaner production 2019 v.210 pp. 309-316
ISSN:
0959-6526
Subject:
aquatic ecosystems; aquifers; arsenic; barium; chromium; crops; ecotoxicology; environmental impact; groundwater contamination; irrigation water; leaching; lime requirement; manganese; monitoring; neutralization; pH; river water; rivers; soil; strontium; titratable acidity; vegetables; water quality; water treatment; watersheds
Abstract:
... Field monitoring was conducted to evaluate the effects of active mine water treatment on improving the water quality of receiving river in a densely populated catchment. Microcosm experiment was also performed to assess the effects of treated mine water on the growth of the vegetable and the uptake of trace elements by the vegetable. The results show that the treatment process was very effective i ...
DOI:
10.1016/j.jclepro.2018.11.029

25. Activity of the soil enzymes and moss and lichen biomonitoring method used for the evaluation of soil and air pollution from tailing pond in Nižná Slaná (Slovakia)

Author:
Lenka Demková; Július Árvay; Lenka Bobuľská; Martin Hauptvogl; Miloslav Michalko
Source:
Journal of environmental science and health 2019 v.54 no.6 pp. 495-507
ISSN:
1532-4117
Subject:
air pollution; alkaline phosphatase; arsenic; chromium; copper; environmental monitoring; enzyme activity; iron; lead; lichens; manganese; mosses and liverworts; nickel; pollution load; ponds; risk; soil; soil enzymes; soil pollution; toxic substances; urease; zinc; Slovakia
Abstract:
... The surrounding of the poorly maintained tailing ponds is endangered by the toxic substances and represents a serious risk for the health of the local population. The aim of the study was to determine the soil pollution by the hazardous elements (As, Cr, Cd, Cu, Fe, Mn, Ni, Pb, Zn) around the tailing pond using contamination factor (Cf), degree of contamination (Cd) and pollution load index (PLI). ...
DOI:
10.1080/10934529.2019.1567158

26. Acute lead arsenate poisoning in beef cattle in Uruguay

Author:
Carlos O. Schild; Federico Giannitti; Rosane M. T. Medeiros; Caroline da Silva Silveira; Rubén D. Caffarena; Robert H. Poppenga; Franklin Riet-Correa
Source:
Journal of veterinary diagnostic investigation 2019 v.31 no.2 pp. 307-310
ISSN:
1943-4936
Subject:
Baccharis coridifolia; arsenic; ataxia (disorder); beef cattle; diarrhea; disease course; lead; lead arsenate; liver; lymphatic system; nephrosis; paresis; pesticide residues; poisoning; poisonous plants; seizures; steers; tissues; trichothecenes; Uruguay
Abstract:
... We describe and illustrate lesions in an outbreak of lead arsenate poisoning in beef cattle that ingested pesticide residues stored in an abandoned building of a former orange orchard. Of 70 exposed cattle, 14 had diarrhea, paresis, ataxia, recumbency, and/or seizures. Ten of the affected animals died after a clinical course of 12–18 h. Pathologic findings in 3 steers included extensive necrohemor ...
DOI:
10.1177/1040638719831413
PubMed:
30734668
PubMed Central:
PMC6838832

27. Adsorption and oxidation of arsenic by two kinds of β-MnO2

Author:
Zhigang Wei; Zhenrui Wang; Jiahong Yan; Yue Liu; Yang Wu; Yangfei Fang; Lin Yu; Gao Cheng; Zhanchang Pan; Guanghui Hu
Source:
Journal of hazardous materials 2019 v.373 pp. 232-242
ISSN:
0304-3894
Subject:
adsorption; arsenates; arsenic; arsenites; kinetics; manganese dioxide; oxidants; oxidation; oxygen; pH; sorption isotherms
Abstract:
... MnO₂ is one of the most widespread and cheapest materials in nature that can both adsorb arsenic and oxidize arsenite [As(III)] to arsenate [As(V)]. In this study, column β-MnO₂ [CM] with the main facet of {110} and pincer β-MnO₂ [PM] with the facets of {110} and {101} are synthesized and used to remove arsenic in water under different conditions. For the adsorption process, the experimental data ...
DOI:
10.1016/j.jhazmat.2019.03.071

28. Adsorption and transformation of thioarsenite at hematite/water interface under anaerobic condition in the presence of sulfide

Author:
Ying Wang; Jinru Lin; Shaofeng Wang; Danni Zhang; Fan Xiao; Xin Wang; Yongfeng Jia
Source:
Chemosphere 2019 v.222 pp. 422-430
ISSN:
0045-6535
Subject:
Raman spectroscopy; X-ray absorption spectroscopy; adsorption; anaerobic conditions; arsenic; arsenites; hematite; oxidation; pH; sorption isotherms
Abstract:
... The adsorption behavior of thioarsenite (TAsIII) on the surface of hematite (α-Fe2O3) is unknown at present. In the present study, we have investigated the transformation and reactions of TAsIII [monothioarsenite (MTAsIII) and dithioarsneite (DTAsIII)] on the surface of α-Fe2O3 in the presence of sulfide at S/As = 1 and 3 by X-ray absorption spectroscopy (XAS) and Raman spectroscopy. The adsorptio ...
DOI:
10.1016/j.chemosphere.2019.01.157

29. Adsorption antagonism and synergy of arsenate(V) and cadmium(II) onto Fe-modified rice straw biochars

Author:
Youchi Zhang; Jiajun Fan; Minglai Fu; Yong Sik Ok; Yanwei Hou; Chao Cai
Source:
Environmental geochemistry and health 2019 v.41 no.4 pp. 1755-1766
ISSN:
0269-4042
Subject:
adsorbents; adsorption; antagonism; arsenates; arsenic; biochar; cadmium; ferric chloride; human health; iron; presoaking; pyrolysis; remediation; rice straw; wastewater
Abstract:
... Arsenic-containing water poses a serious threat to human health. In this study, two types of Fe-modified rice straw biochars [(Fe-impregnated biochar (FeIm char) and pre-modified rice straw biochar (PMRS char)] were prepared, in which three ratios [1, 5, and 10% (w/w)] of Fe modification were evaluated, resulting in six different Fe-modified biochars. Then, a series of adsorption experiments, usin ...
DOI:
10.1007/s10653-017-9984-8

30. Adsorption behavior of arsenicals on MIL-101(Fe): The role of arsenic chemical structures

Author:
Zongchen Li; Xuemin Liu; Wei Jin; Qingsong Hu; Yaping Zhao
Source:
Journal of colloid and interface science 2019 v.554 pp. 692-704
ISSN:
0021-9797
Subject:
Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; adsorbents; adsorption; arsenates; arsenic; chemical structure; coordination polymers; hydrogen bonding; iron; kinetics; pollutants; porosity; roxarsone; toxicity
Abstract:
... Arsenic species are regarded as typical water pollutants due to their toxicity. The chemical structures of arsenic species greatly influence their migration and transformation in the environment. Metal-organic frameworks (MOFs) are used as reliable adsorbents to control arsenic contamination, so it is urgently needed to study the effect of chemical structure of arsenic species during adsorption pr ...
DOI:
10.1016/j.jcis.2019.07.046

31. Adsorption isotherm and thermodynamic studies of As(III) removal from aqueous solutions using used cigarette filter ash

Author:
Pezhman Zein Al-Salehin; Farid Moeinpour; Fatemeh S. Mohseni-Shahri
Source:
Applied water science 2019 v.9 no.8 pp. 172
ISSN:
2190-5487
Subject:
adsorbents; adsorption; aqueous solutions; arsenic; cigarettes; endothermy; energy-dispersive X-ray analysis; ions; models; pH; scanning electron microscopy; sorption isotherms; thermodynamics
Abstract:
... In the present paper, used cigarette filter ash was prepared and used as an active adsorbent to remove As(III) ions from aqueous solutions. The prepared adsorbent structure was identified by scanning electron microscopy analysis, Brunauer–Emmett–Teller method and energy-dispersive X-ray spectroscopy analysis. The influence of contact time, pH, adsorbent dose and initial concentration of As(III) on ...
DOI:
10.1007/s13201-019-1059-9

32. Adsorption mechanism of As(III) on polytetrafluoroethylene particles of different size

Author:
Youming Dong; Minling Gao; Zhengguo Song; Weiwen Qiu
Source:
Environmental pollution 2019 v.254 pp. 112950
ISSN:
0269-7491
Subject:
adsorption; arsenic; electrostatic interactions; heat production; hydrogen bonding; mass transfer; microplastics; models; moieties; oxyanions; pH; polytetrafluoroethylene; protonation; sorption isotherms; surface area; temperature
Abstract:
... Microplastics exhibit active environmental behavior and unique surface characteristics, and act as carriers for the migration of trivalent arsenic (As(III)) in the environment. Herein, the mechanism by which polytetrafluoroethylene (PTFE) microplastic particles adsorb As(III) is systematically determined. The larger the size of PTFE particles, the smaller the specific surface area, the higher the ...
DOI:
10.1016/j.envpol.2019.07.118

33. Adsorption of Aqueous As (III) in Presence of Coexisting Ions by a Green Fe-Modified W Zeolite

Author:
Adriana Medina-Ramirez; Procoro Gamero-Melo; Beatriz Ruiz-Camacho; Jesus Isaac Minchaca-Mojica; Rafael Romero-Toledo; Karen Yazmin Gamero-Vega
Source:
Water 2019 v.11 no.2 pp. -
ISSN:
2073-4441
Subject:
adsorption; arsenic; arsenites; chemical bonding; chemical treatment; endothermy; ferrous chloride; fly ash; groundwater; ions; pH; temperature; toxicity; water treatment; zeolites
Abstract:
... The high toxicity of arsenite and the difficulty to remove it is one of the main challenges for water treatment. In the present work the surface of a low cost zeolite was modified by chemical treatment with a ferrous chloride to enhance its arsenite adsorption capacity. The effect of pH, ions coexistence, concentration, temperature and dosage was studied on the adsorption process. Additionally, th ...
DOI:
10.3390/w11020281

34. Adsorption of Arsenite on Gold Nanoparticles Studied with DNA Oligonucleotide Probes

Author:
Chenghua Zong; Zijie Zhang; Biwu Liu; Juewen Liu
Source:
Langmuir 2019 v.35 no.22 pp. 7304-7311
ISSN:
1520-5827
Subject:
DNA; Raman spectroscopy; adsorption; arsenic; arsenites; bromides; calorimetry; color; colorimetry; gold; guanosine; nanogold; nucleotide sequences; oligonucleotide probes; oligonucleotides; titration
Abstract:
... Gold nanoparticles (AuNPs) have been extensively used for detecting arsenite, As(III). Many methods rely on a DNA aptamer that claimed to bind specifically to inorganic arsenic. In these cases, the focus was on arsenic binding to the aptamer, while the potential interactions between As(III) and the AuNP surface were ignored. Herein, a set of spectroscopic and isothermal titration calorimetry (ITC) ...
DOI:
10.1021/acs.langmuir.9b01161

35. Adsorption of As(V) from Water over a Hydroxyl-Alumina Modified Paddy Husk Ash Surface and Its Sludge Immobilization

Author:
Susmita Sarmah; Jitu Saikia; Ankana Phukan; Rajib Lochan Goswamee
Source:
Water, air, and soil pollution 2019 v.230 no.2 pp. 32
ISSN:
0049-6979
Subject:
X-ray diffraction; adsorbents; adsorption; aluminum; arsenates; arsenic; arsenites; cement; energy-dispersive X-ray analysis; groundwater; husk ash; kinetics; models; neoplasms; pH; paddies; particle size; scanning electron microscopy; sludge; sorption isotherms; zeta potential
Abstract:
... Arsenic (As) is considered as one of the most hazardous elements found in the groundwater. It is present in water in both arsenate (As(V)) and arsenite (As(III)) forms. On exposure for a considerable length of time to water having As concentration above the maximum permissible limit of 10 μg/L, there is a serious threat of developing various health problems including cancer. There is frequent repo ...
DOI:
10.1007/s11270-019-4088-y

36. Adsorption of arsenate from aqueous solution by ferric oxide-impregnated Dowex Marathon MSA anion exchange resin: application of non-linear isotherm modeling and thermodynamic studies

Author:
Sujitra Tandorn; Orn-anong Arqueropanyo; Wimol Naksata; Ponlayuth Sooksamiti; Ingon Chaisri
Source:
Environmental earth sciences 2019 v.78 no.5 pp. 136
ISSN:
1866-6280
Subject:
Gibbs free energy; adsorbents; adsorption; anion exchange resins; aqueous solutions; arsenates; arsenic; endothermy; enthalpy; entropy; equations; models; pH; regression analysis; sorption isotherms; temperature
Abstract:
... The characteristic of adsorption of As(V) onto ferric oxide-impregnated anion resin Dowex marathon MSA (FO-Dowex) was investigated. Batch adsorption experiment was studied as a function of pH, contact time, initial As(V) concentration, and temperature. The results revealed that the adsorption of As(V) onto FO-Dowex was highly pH-dependent and that the equilibrium time was attained within 360 min. ...
DOI:
10.1007/s12665-019-8138-y

37. Adsorption of arsenic (V) from aqueous solution using modified saxaul ash: isotherm and thermodynamic study

Author:
Somayeh Rahdar; Mahmoud Taghavi; Razieh Khaksefidi; Shahin Ahmadi
Source:
Applied water science 2019 v.9 no.4 pp. 87
ISSN:
2190-5487
Subject:
adsorbents; adsorption; aqueous solutions; arsenic; pH; sorption isotherms; temperature; thermodynamics
Abstract:
... Recently, arsenic-contaminated water has become a big concern. Therefore, the present study aimed to absorb arsenic from the aqueous solution using modified saxaul tree ash. Arsenic adsorption process was performed in vitro by investigating the effect of various parameters such as pH, contact time, arsenic concentrations, temperature and adsorbent dosage on the adsorption efficiency. Isotherms, ki ...
DOI:
10.1007/s13201-019-0974-0

38. Adsorption of arsenic (V) on magnetite-enriched particles separated from the mill scale

Author:
Muhammad Kashif Shahid; San Phearom; Young-Gyun Choi
Source:
Environmental earth sciences 2019 v.78 no.3 pp. 65
ISSN:
1866-6280
Subject:
X-ray diffraction; adsorbents; adsorption; arsenates; arsenic; cost effectiveness; energy-dispersive X-ray analysis; magnetic fields; models; particle size; scanning electron microscopy; sorption isotherms
Abstract:
... The magnetite-enriched particles (MEP) were separated from the mill scale on low magnetic intensity ranging from 300 to 500 gauss. The characterization of the MEP was done with scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD). The adsorption efficiency of MEP was investigated with batch tests and column operation. The maximum adsorption cap ...
DOI:
10.1007/s12665-019-8066-x

39. Adsorption of arsenic by activated charcoal coated zirconium-manganese nanocomposite: Performance and mechanism

Author:
Yuwei Yin; Tingting Zhou; Hanjin Luo; Junjie Geng; Wenyi Yu; Zhongjie Jiang
Source:
Colloids and surfaces 2019 v.575 pp. 318-328
ISSN:
0927-7757
Subject:
activated carbon; adsorption; anions; arsenic; bicarbonates; chlorides; drinking water; fluorides; manganese; manganese dioxide; nanocomposites; nitrates; oxidation; phosphates; pollution; sorbents; sulfates; surface area; toxicity; zirconium; zirconium oxide
Abstract:
... As(III) is more toxic and harder to remove than As(V) though they are always co-exist in water. In order to effectively eliminate pollution of arsenic and explore the adsorption mechanism, a novel-innovative hydrated zirconium oxide (ZrO(OH)₂) and manganese dioxide (MnO₂) coated modified activated charcoal (Zr/Mn/C) prepared via a co-precipitation-hydrothermal method. Results showed that As(III) c ...
DOI:
10.1016/j.colsurfa.2019.04.093

40. Adsorption of arsenic using chitosan magnetic graphene oxide nanocomposite

Author:
A.I.A. Sherlala; A.A.A. Raman; M.M. Bello; A. Buthiyappan
Source:
Journal of environmental management 2019 v.246 pp. 547-556
ISSN:
0301-4797
Subject:
Fourier transform infrared spectroscopy; adsorbents; adsorption; aqueous solutions; arsenic; chitosan; energy-dispersive X-ray analysis; graphene oxide; heat production; kinetics; magnetic fields; models; nanocomposites; nanoparticles; pH; remediation; scanning electron microscopy; sorption isotherms; surface area
Abstract:
... Chitosan-magnetic-graphene oxide (CMGO) nanocomposite was prepared for arsenic adsorption. The nanocomposite was characterized through BET, FTIR, FESEM, EDX, and VSM analyses. These characterizations confirmed the formation of CMGO nanocomposites with high specific surface area (152.38 m2/g) and excellent saturation magnetization (49.30 emu/g). Batch adsorption experiments were conducted to evalua ...
DOI:
10.1016/j.jenvman.2019.05.117

41. Adsorption of arsenic(V) onto single sheet iron oxide: X-ray absorption fine structure and surface complexation

Author:
Zhou Yin; Johannes Lützenkirchen; Nicolas Finck; Noémie Celaries; Kathy Dardenne; Hans Chr. Bruun Hansen
Source:
Journal of colloid and interface science 2019 v.554 pp. 433-443
ISSN:
0021-9797
Subject:
X-ray absorption spectroscopy; adsorption; arsenic; binding capacity; ferrihydrite; goethite; iron oxides; models; nanosheets; pH; sorbents; sorption isotherms; surface area
Abstract:
... Adsorption onto two-dimensional nanosheet materials offers new possibilities for fast and efficient removal of contaminants from waters. Here, the adsorption of As(V) to a new type of iron oxides – single sheet iron oxide (SSI) – has been studied as a function of time, loading and pH. Adsorption of As(V) onto SSI was very fast compared to other iron oxides, with 80% of total As(V) adsorbed within ...
DOI:
10.1016/j.jcis.2019.07.024

42. Adsorptive filtration of As(III) from drinking water by CuFe2O4 particles embedded in carbon nanotube membranes

Author:
Hongyan Luan; Jingwen Xu; Zhiqiang Tan; Aihua Zheng; Haiou Huang
Source:
Journal of chemical technology and biotechnology 2019 v.94 no.9 pp. 2816-2825
ISSN:
0268-2575
Subject:
arsenic; arsenites; asymmetric membranes; carbon nanotubes; copper; copper nanoparticles; decontamination; drinking water; drinking water treatment; ferrimagnetic materials; hot water treatment; microfiltration; organic matter; phosphates; sodium hydroxide
Abstract:
... BACKGROUND: For effective removal of arsenite [As(III)] from drinking water, copper ferrite (CuFe₂O₄) particles were prepared by using a hydrothermal method and incorporated into layered carbon nanotube (CNT) membranes. The prepared composite membranes were used in the filtration of As(III) under conditions representative of drinking water treatment. RESULTS: The results demonstrated that the CNT ...
DOI:
10.1002/jctb.5950

43. Adsorptive removal of arsenic from real sample of polluted water using magnetic GO/ZnFe2O4 nanocomposite and ZnFe2O4 nanospinel

Author:
S. A. Hosseini; A. R. Abbasian; O. Gholipoor; S. Ranjan; N. Dasgupta
Source:
International journal of environmental science and technology 2019 v.16 no.11 pp. 7455-7466
ISSN:
1735-1472
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; adsorbents; adsorption; arsenic; decontamination; drinking water; humans; magnetism; nanocomposites; pH; remediation; response surface methodology; transmission electron microscopy; water pollution
Abstract:
... Developing affordable and efficient materials for the removal of arsenic from drinking water is crucial for human and environmental safety. In the present study, the adsorptive performance of magnetic GO/ZnFe₂O₄ nanocomposite and ZnFe₂O₄ nanospinel for arsenic removal from aqueous water was analyzed. The adsorbents were characterized using Fourier-transform infrared spectroscopy, X-ray powder diff ...
DOI:
10.1007/s13762-018-2140-x

44. Aerosols from a wastewater treatment plant using oxidation ditch process: Characteristics, source apportionment, and exposure risks

Author:
Tang Yang; Yunping Han; Junxin Liu; Lin Li
Source:
Environmental pollution 2019 v.250 pp. 627-638
ISSN:
0269-7491
Subject:
Dermatophilus; Enterobacteriaceae; Pseudomonas aeruginosa; Selenomonas; Staphylococcus aureus; Veillonella; Xanthobacter; aeration; aerosols; air; arsenic; bacteria; breathing; cadmium; carcinogenicity; cobalt; dewatering; exposure pathways; human health; oxidation; risk; risk assessment; sludge; wastewater; wastewater treatment; worker honey bees
Abstract:
... The study of aerosol dispersion characteristics in wastewater treatment plants (WWTPs) has attracted extensive attention. Oxidation ditch (OD) is a commonly implemented process during biological wastewater treatment. This study assessed the component characteristics, source apportionment, and exposure risks of aerosols generated from a WWTP using the OD process (AWO). The results indicated that th ...
DOI:
10.1016/j.envpol.2019.04.071

45. Affordable and efficient adsorbent for arsenic removal from rural water supply systems in Newfoundland

Author:
Javid Shadbahr; Tahir Husain
Source:
Science of the total environment 2019 v.660 pp. 158-168
ISSN:
0048-9697
Subject:
adsorbents; adsorption; arsenic; carbon; carbon dioxide; ferric chloride; fly ash; iodine value; iron; kinetics; models; raw materials; rural water supply; sorption isotherms; steam; temperature
Abstract:
... The fly ash from the Corner Brook Pulp and Paper (CBPP) mill was used in this study as the raw material for the preparation of a low-cost adsorbent for arsenic removal from the well water of Bell Island. The CBPP fly ash was physically activated in two different ways: (a) activation with pure CO2 (CAC) with the iodine number and methylene value of 704.53 mg/g and 292.32 mg/g, respectively; and (b) ...
DOI:
10.1016/j.scitotenv.2018.12.319

46. Aggregation-induced enhanced photoluminescence in magnetic graphene oxide quantum dots as a fluorescence probe for As(iii) sensing

Author:
Shabnam Pathan; Misna Jalal; Sanjay Prasad; Suryasarathi Bose
Source:
Journal of materials chemistry A 2019 v.7 no.14 pp. 8510-8520
ISSN:
2050-7496
Subject:
Raman spectroscopy; X-ray photoelectron spectroscopy; antibiotics; arsenic; detection limit; drinking water; fluorescence; fluorescent dyes; graphene; graphene oxide; heavy metals; humans; ions; magnetism; pH; photoluminescence; quantum dots; reactive oxygen species; ultraviolet radiation; water pollution; zeta potential
Abstract:
... Clean drinking water is a basic need of human beings around the world. In the past few decades, many research groups have been trying different methods to exploit quantum dots (QDs) to decontaminate water but, due to either cost or cumbersome steps, they have been unsuccessful. We have tried exploiting graphene quantum dots (GQDs) for heavy metal ion detection, particularly for arsenic ions in con ...
DOI:
10.1039/c8ta11358k

47. Air quality assessment in different environmental scenarios by the determination of typical heavy metals and Persistent Organic Pollutants in native lichen Xanthoria parietina

Author:
Matteo Vitali; Arianna Antonucci; Malgorzata Owczarek; Maurizio Guidotti; Maria Luisa Astolfi; Maurizio Manigrasso; Pasquale Avino; Badal Bhattacharya; Carmela Protano
Source:
Environmental pollution 2019 v.254 pp. 113013
ISSN:
0269-7491
Subject:
Xanthoria; air quality; arsenic; bioaccumulation; cadmium; chromium; cobalt; environmental monitoring; heavy metals; indicator species; indigenous species; industrial sites; lead; lichens; nickel; persistent organic pollutants; polybrominated diphenyl ethers; polychlorinated biphenyls; polychlorinated dibenzodioxins; polychlorinated dibenzofurans; polycyclic aromatic hydrocarbons; principal component analysis
Abstract:
... The study was aimed to evaluate the ability of native lichen Xanthoria (X.) parietina to biomonitor and bioaccumulate some heavy metals (As, Cd, Co, Cr, Ni, Pb), PAHs, PCDDs, PCDFs, PCBs and PBDEs and to evaluate the use of the native X. parietina as a multi-tracer tool for scenarios characterized by different anthropogenic pressures. Samples of native X. parietina were collected in six different ...
DOI:
10.1016/j.envpol.2019.113013

48. Alleviation of arsenic toxicity by phosphate is associated with its regulation of detoxification, defense, and transport gene expression in barley

Author:
Gerald Zvobgo; Jonas Lwalaba Wa Lwalaba; Tichaona Sagonda; James Mutemachani Mapodzeke; Noor Muhammad; Imran Haider Shamsi; Guo-ping ZHANG
Source:
Journal of integrative agriculture 2019 v.18 no.2 pp. 381-394
ISSN:
2095-3119
Subject:
antioxidants; arsenates; arsenic; barley; catalase; crop production; enzyme activity; gene expression; genes; genotype; glutathione; phosphates; phosphorus; phosphorus fertilizers; plant growth; plant tissues; polluted soils; superoxide dismutase; toxicity
Abstract:
... Arsenic (As) contamination in soils has posed a severe threat to safe crop production. The previous studies showed the antagonism between phosphorus (P) and As in plant growth and As uptake, while the mechanisms of alleviating As toxicity by P is not completely clear. Due to the limiting P condition, it is imperative to understand how low P addition can be used to suppress arsenate As (V) uptake a ...
DOI:
10.1016/S2095-3119(18)61955-0

49. Alr2321, a multiple stress inducible glyoxalase I of Anabaena sp. PCC7120 detoxifies methylglyoxal and reactive species oxygen

Author:
Shweta Rai; Ruchi Rai; Prashant Kumar Singh; L.C. Rai
Source:
Aquatic toxicology 2019 v.214 pp. 105238
ISSN:
0166-445X
Subject:
Anabaena; abiotic stress; arsenic; binding sites; cadmium; catalytic activity; cobalt; copper; divalent metals; enzymes; genome-wide association study; heat; lactic acid; manganese; metal ions; nickel; oxygen; proteins; reactive oxygen species; salinity; toxicity; ultraviolet radiation; zinc
Abstract:
... Abiotic stresses enhance the cellular level of reactive oxygen species (ROS) which consequently leads to toxic methylglyoxal (MG) production. Glyoxalases (GlyI & GlyII) catalyze the conversion of toxic MG into non-toxic lactic acid but their properties and functions have been overlooked in cyanobacteria. This is the first attempt to conduct a genome-wide analysis of GlyI protein (PF00903) from Ana ...
DOI:
10.1016/j.aquatox.2019.105238

50. Alterations of arsenic levels in arsenicosis residents and awareness of its risk factors: A population-based 20-year follow-up study in a unique coal-borne arsenicosis County in Guizhou, China

Author:
Dapeng Wang; Peng Luo; Zhonglan Zou; Qingling Wang; Maolin Yao; Chun Yu; Shaofeng Wei; Baofei Sun; Kai Zhu; Qibing Zeng; Jun Li; Bing Liang; Aihua Zhang
Source:
Environment international 2019 v.129 pp. 18-27
ISSN:
0160-4120
Subject:
air; arsenic; burning; coal; combustion; corn; drying; education programs; food contamination; health education; hot peppers; household income; lifestyle; questionnaires; regression analysis; rice; risk factors; smoking (habit); sociodemographic characteristics; socioeconomic status; soil; surveys; urine; China
Abstract:
... Currently, most arsenic (As) studies in populations are concerned with water-borne arsenicosis. However, residents in Xingren County of Guizhou Province, Southwest of China, represent a unique case of arsenicosis which is related to indoor combustion of high As-containing coal. This study aimed to assess the alterations of As levels and its risk factors in coal-borne arsenicosis residents during t ...
DOI:
10.1016/j.envint.2019.05.005

51. Ameliorative effect of gallic acid on sodium arsenite-induced spleno-, cardio- and hemato-toxicity in rats

Author:
Azam Hosseinzadeh; Gholamreza Houshmand; Mehdi Goudarzi; Seyed Hashem Sezavar; Saeed Mehrzadi; Esrafil Mansouri; Mojtaba Kalantar
Source:
Life sciences 2019 v.217 pp. 91-100
ISSN:
0024-3205
Subject:
adults; antioxidant activity; arsenic; blood serum; catalase; creatine; free radical scavengers; gallic acid; glutathione; glutathione peroxidase; heart; histopathology; hypertension; laboratory animals; males; medicinal properties; neoplasms; nitric oxide; oxidative stress; rats; skin lesions; sodium arsenite; spleen; superoxide dismutase; tissues; toxic substances
Abstract:
... Arsenic is an important toxic chemical affecting millions of people around the world. Exposure to inorganic arsenic results in various health problems including skin lesions, hypertension, hematological disturbance, cardiovascular disease, spleen enlargement and cancer. Gallic acid (GA) is an important phenolic compound possessing various pharmacological properties including anti-inflammatory, ant ...
DOI:
10.1016/j.lfs.2018.11.050

52. Amorphous Fe/Mn bimetal–organic frameworks: outer and inner structural designs for efficient arsenic(iii) removal

Author:
Tianshu Zhang; Jing Wang; Wentao Zhang; Chengyuan Yang; Liang Zhang; Wenxin Zhu; Jing Sun; Guoliang Li; Tao Li; Jianlong Wang
Source:
Journal of materials chemistry A 2019 v.7 no.6 pp. 2845-2854
ISSN:
2050-7496
Subject:
Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; acute toxicity; adsorbents; adsorption; arsenic; crystallization; decontamination; ecosystems; engineering; ferrous oxide; iron; manganese; oxidation; oxygen; public health; remediation; synergism; temperature
Abstract:
... Highly efficient decontamination of naturally occurring As(iii) from aqueous media remains a rigorous task for public health and ecosystem protection. As its increasingly acute toxicity and mobile characteristics than those of As(v), it is imperative to exploit a technique for the simultaneous removal and detoxication of As(iii). Herein, a novel strategy involving outer and inner structural engine ...
DOI:
10.1039/c8ta10394a

53. Ample Arsenite Bio-Oxidation Activity in Bangladesh Drinking Water Wells: A Bonanza for Bioremediation?

Author:
Zahid Hassan; Munawar Sultana; Sirajul I. Khan; Martin Braster; Wilfred F.M. Röling; Hans V. Westerhoff
Source:
Microorganisms 2019 v.7 no.8 pp. -
ISSN:
2076-2607
Subject:
Acinetobacter; Agrobacterium; Comamonas; Dechloromonas; Hydrogenophaga; Rhizobium; arsenates; arsenic; arsenites; bioremediation; decontamination; drinking water; enzymes; genes; iron oxides; microbial activity; microbial communities; microbiome; nucleotide sequences; oxidants; oxidation; phylogeny; phylotype; poisoning; ribosomal RNA; risk; surveys; wells; Bangladesh
Abstract:
... Millions of people worldwide are at risk of arsenic poisoning from their drinking water. In Bangladesh the problem extends to rural drinking water wells, where non-biological solutions are not feasible. In serial enrichment cultures of water from various Bangladesh drinking water wells, we found transfer-persistent arsenite oxidation activity under four conditions (aerobic/anaerobic; heterotrophic ...
DOI:
10.3390/microorganisms7080246
PubMed:
31398879
PubMed Central:
PMC6723331

54. Anaerobic digestion to reduce biomass and remove arsenic from As-hyperaccumulator Pteris vittata

Author:
Evandro B. da Silva; Wendy A. Mussoline; Ann C. Wilkie; Lena Q. Ma
Source:
Environmental pollution 2019 v.250 pp. 23-28
ISSN:
0269-7491
Subject:
Pteris vittata; anaerobic digestion; arsenic; biomass; gases; liquids; methane; methane production; phytoremediation; solubilization
Abstract:
... The lack of efficient methods to treat As-rich biomass is a drawback for phytoremediation technology. In this study, we applied anaerobic digestion to reduce biomass and remove As from As-rich Pteris vittata biomass. P. vittata biomass including control (3.1 mg kg−1 As) and As-rich (2665 mg kg−1 As), together with positive and negative controls, was anaerobically digested at 35 °C for 35 d. Arseni ...
DOI:
10.1016/j.envpol.2019.03.117

55. Analysis and risk assessment of arsenic, cadmium and lead in two fish species (Sardina pilchardus and Xiphias gladius) from Algerian coastal water

Author:
Fetta Mehouel; Leila Bouayad; Ali Berber; Inge Van Hauteghem; Mieke Van de Wiele
Source:
Food additives & contaminants 2019 v.36 no.10 pp. 1515-1521
ISSN:
1944-0057
Subject:
Sardina pilchardus; Xiphias gladius; arsenic; average daily intake; cadmium; coastal water; coasts; dietary exposure; food contamination; lead; sardines
Abstract:
... In this study, the levels of arsenic (As), cadmium (Cd) and lead (Pb) have been determined in the flesh of two species of fish, sardine (Sardina pilchardus) and swordfish (Xiphias gladius) fished in the Algerian coast. Quantification of As, Cd and Pb was carried out using an ICP-MS method and the results were compared with the thresholds set by national and international regulatory bodies. In a fu ...
DOI:
10.1080/19440049.2019.1634840

56. Analysis of 11 trace elements in flight feathers of Italian Sparrows in southern Italy: A study of bioaccumulation through age classes, variability in three years of sampling, and relations with body condition

Author:
Michele Innangi; Davide De Rosa; Tiziana Danise; Ilaria Fozzi; Marcello Giannotti; Marilena Izzo; Marco Trifuoggi; Antonietta Fioretto
Source:
Science of the total environment 2019 v.651 pp. 2003-2012
ISSN:
0048-9697
Subject:
Passeriformes; adulthood; adults; age structure; aluminum; arsenic; barium; bioaccumulation; biosphere; birds; body condition; cadmium; chromium; copper; environmental hazards; feathers; indicator species; iron; juveniles; lead; manganese; models; molting; monitoring; nickel; trophic levels; zinc; Italy
Abstract:
... Trace elements have been acknowledged as one of the subtlest environmental hazards in all compartments of the total environment. Enhanced by activities in the anthroposphere, they accumulate in the atmosphere, lithosphere, and hydrosphere. Eventually, trace elements can bioaccumulate or biomagnifiy in the biosphere, with harmful effects on animals occupying higher trophic levels, including humans. ...
DOI:
10.1016/j.scitotenv.2018.10.105

57. Analysis of Toxic and Essential Elements in the Blood and Feathers of Humboldt Penguins (Spheniscus humboldti) at Punta San Juan, Peru

Author:
Michael J. Adkesson; Jeffrey M. Levengood; John W. Scott; David J. Schaeffer; Brent Panno; Jennifer N. Langan; Susana Cárdenas-Alayza; Sandra James-Yi
Source:
Journal of wildlife diseases 2019 v.55 no.2 pp. 438-443
ISSN:
0090-3558
Subject:
Spheniscus; aluminum; arsenic; atomic absorption spectrometry; barium; blood serum; boron; breeding; calcium; copper; environmental monitoring; feathers; fluorescence; human population; iron; magnesium; manganese; marine protected areas; mercury; penguins; potassium; reproductive success; selenium; sodium; titanium; toxic substances; toxicity; vapors; zinc; Peru
Abstract:
... Whole blood, serum, and feather samples from 29 Humboldt Penguins (Spheniscus humboldti) at the Punta San Juan Marine Protected Area, Peru, were analyzed for 55 toxic and essential elements by using inductively coupled plasma mass spectrometry. Mercury (Hg) was analyzed by cold vapor atomic fluorescence. Maximum Hg concentrations in serum (0.0056 mg/g), whole blood (0.297 mg/kg), and feathers (1.8 ...
DOI:
10.7589/2018-03-081

58. Analysis of chickpea gene co-expression networks and pathways during heavy metal stress

Author:
Birendra Singh Yadav; Swati Singh; Sameer Srivastava; Ashutosh Mani
Source:
Journal of biosciences 2019 v.44 no.4 pp. 99
ISSN:
0250-5991
Subject:
F-box proteins; abiotic stress; amino acids; arsenic; beta-glucosidase; biochemical pathways; biosynthesis; biotic stress; cadmium; carboxylic ester hydrolases; cellulose synthase; chickpeas; chromium; gene expression regulation; genes; heavy metals; indole alkaloids; isoflavones; microarray technology; riboflavin; stress tolerance
Abstract:
... Crop productivity and yield are adversely affected by abiotic and biotic stresses. Therefore, finding out the genes responsible for stress tolerance is a significant stride towards crop improvement. A gene co-expression network is a powerful tool to detect the most connected genes during heavy metal (HM) stress in plants. The most connected genes may be responsible for HM tolerance by altering the ...
DOI:
10.1007/s12038-019-9899-x

59. Analysis of native vegetation for detailed characterization of a soil contaminated by tannery waste

Author:
Donato Visconti; Nunzio Fiorentino; Antonio G. Caporale; Adriano Stinca; Paola Adamo; Riccardo Motti; Massimo Fagnano
Source:
Environmental pollution 2019 v.252 pp. 1599-1608
ISSN:
0269-7491
Subject:
Amaranthus retroflexus; Cynodon dactylon; Erigeron sumatrensis; European Union; Lolium perenne; agricultural land; arsenic; bioavailability; cadmium; chromium; ecosystems; food chain; forage; habitats; human health; indigenous species; lead; phytoremediation; polluted soils; risk; roots; shoots; tannery waste; toxic substances; zinc; Italy
Abstract:
... The risks for human health and the ecosystem due to potentially toxic elements (PTEs) were investigated in a farmland classified as potentially contaminated by Cr and Zn by analysing native vegetation and relative rhizo-soils. Rhizo-soils of different plant species were found to be enriched by Cr and Zn as well as by elements omitted from official environmental characterization, namely Cd, As and ...
DOI:
10.1016/j.envpol.2019.06.125

60. Analysis of occurrence, bioaccumulation and molecular targets of arsenic and other selected volcanic elements in Argentinean Patagonia and Antarctic ecosystems

Author:
Paula A. Lamela; Julio A. Navoni; Roberto D. Pérez; Carlos A. Pérez; Cristian L. Vodopivez; Antonio Curtosi; Guillermina A. Bongiovanni
Source:
Science of the total environment 2019 v.681 pp. 379-391
ISSN:
0048-9697
Subject:
X-ray fluorescence spectroscopy; algae; animals; aquifers; arsenic; bacteria; bioaccumulation; biotransformation; bromine; calcium; chlorine; chromium; cobalt; copper; ecosystems; elemental composition; groundwater; iron; manganese; nickel; pollution; polyacrylamide gel electrophoresis; potassium; proteins; rivers; rubidium; selenium; sodium dodecyl sulfate; strontium; sulfur; titanium; vanadium; volcanic activity; volcanoes; water quality; zinc; Andes region; Antarctic region; Antarctica; Argentina; Latin America
Abstract:
... In Latin America, the high proportion of arsenic (As) in many groundwaters and phreatic aquifers is related to the volcanism of the Andean Range. Nevertheless, there is still very little published research on As and other elements occurrence, and/or transference to biota in Southern regions such as Argentinean Patagonia and the South Shetland Islands in Antarctica, where there are active volcanoes ...
DOI:
10.1016/j.scitotenv.2019.05.096

61. Analysis of the dynamic aberrant landscape of DNA methylation and gene expression during arsenic-induced cell transformation

Author:
Francisco M. Barajas-Olmos; Elizabeth Ortiz-Sánchez; Ivan Imaz-Rosshandler; Emilio J. Córdova-Alarcón; Adolfo Martínez-Tovar; Jairo Villanueva-Toledo; Mirna E. Morales-Marín; José L. Cruz-Colín; Claudia Rangel; Lorena Orozco; Federico Centeno
Source:
Gene 2019 v.711 pp. 143941
ISSN:
0378-1119
Subject:
DNA methylation; arsenic; carcinogenesis; carcinogens; chronic exposure; cluster analysis; epigenetics; gene expression; genes; microarray technology; models; neoplasms; promoter regions
Abstract:
... Inorganic arsenic is a well-known carcinogen associated with several types of cancer, but the mechanisms involved in arsenic-induced carcinogenesis are not fully understood. Recent evidence points to epigenetic dysregulation as an important mechanism in this process; however, the effects of epigenetic alterations in gene expression have not been explored in depth. Using microarray data and applyin ...
DOI:
10.1016/j.gene.2019.143941

62. Analysis of total arsenic content in purchased rice from Ecuador

Author:
Oliva Atiaga-Franco; Xose Luis Otero; Alejandrina Gallego-Picó; Luis Escobar-Castañeda; Juan Bravo-Yagüe; David Carrera-Villacrés
Source:
Czech Journal of Food Sciences v.37 no.6 pp. 425-431
ISSN:
1805-9317
Subject:
absorption; arsenic; dietary exposure; human food chain; humans; hydrides; parboiling; rice; risk; spectroscopy; staple foods; Andes region; Ecuador
Abstract:
... Natural and anthropogenic sources contribute to arsenic contamination in water and human food chain in Andean countries. Human exposure to arsenic via rice consumption is of great concern in countries where this crop is the dominant staple food, and limited information is available on the arsenic contamination on rice in Ecuador. This work was to contribute to the lack of knowledge analysing total ...
DOI:
10.17221/183/2018-cjfs

63. Analysis of urinary trace element levels in general population of Wuhan in central China

Author:
Hao-Long Zeng; Chang-Wen-Bo Liu; Jie Lu; Xu Wang; Liming Cheng
Source:
Environmental science and pollution research international 2019 v.26 no.27 pp. 27823-27831
ISSN:
0944-1344
Subject:
adults; arsenic; cadmium; chromium; copper; environmental monitoring; glomerular filtration rate; humans; industry; lead; lifestyle; manganese; mercury; metropolitan areas; selenium; urine; China
Abstract:
... Trace element distribution in the human body varies across regions and countries due to their different living environment and lifestyle. Thus, it is of great significance to investigate the reference level of trace element in a specific population. Wuhan is the largest metropolitan area in central China with highly developed heavy industries. This study aimed at determining the reference urinary ...
DOI:
10.1007/s11356-019-05973-7

64. Anomalous concentrations of arsenic, fluoride and radon in volcanic-sedimentary aquifers from central Italy: Quality indexes for management of the water resource

Author:
D. Cinti; O. Vaselli; P.P. Poncia; L. Brusca; F. Grassa; M. Procesi; F. Tassi
Source:
Environmental pollution 2019 v.253 pp. 525-537
ISSN:
0269-7491
Subject:
aquifers; arsenic; cold; drinking water; fluorides; geostatistics; groundwater flow; humans; mixing; pollutants; radionuclides; radon; temperature; volcanic rocks; water supply; weathering; wells; Italy
Abstract:
... 659 water samples from springs and wells in the Sabatini and Vicano-Cimino Volcanic Districts (central Italy) were analyzed for arsenic (As), fluoride (F⁻) and radon (²²²Rn) concentrations. Waters mostly sourced from a shallow and cold aquifer hosted within volcanic rocks, which represents the main public drinking water supply. Cold waters from perched aquifers within sedimentary formations and th ...
DOI:
10.1016/j.envpol.2019.07.063

65. Anoxic growth optimization for metal respiration and photobiological hydrogen production by arsenic‐resistant Rhodopseudomonas and Rhodobacter species

Author:
Hareem Mohsin; Azka Asif; Yasir Rehman
Source:
Journal of basic microbiology 2019 v.59 no.12 pp. 1208-1216
ISSN:
0233-111X
Subject:
Rhodobacter; Rhodopseudomonas palustris; Rhodospirillaceae; acetates; anaerobic conditions; anaerobiosis; arsenates; arsenic; arsenites; bacteria; carbon; citrates; cobalt; effluents; gas production (biological); hydrogen production; lactic acid; lead; metal tolerance; nickel; nucleotide sequences; oxalates; ribosomal RNA; selenium; toxicity
Abstract:
... The current research focuses on anaerobic respiration of arsenic and other toxic metals by purple nonsulfur bacteria (PNSB). Among the optimization assays performed were carbon utilization, cross metal resistance, and metal respiration, along with a comparison of each assay in photoheterotrophic and chemoheterotrophic growth. The bacteria were identified by the classification of 16S ribosomal RNA ...
DOI:
10.1002/jobm.201900100

66. Antagonistic Interactions between Arsenic, Lead, and Cadmium in the Mouse Gastrointestinal Tract and Their Influences on Metal Relative Bioavailability in Contaminated Soils

Author:
Hong-Bo Li; Xiao-Qiang Chen; Jue-Yang Wang; Meng-Ya Li; Di Zhao; Xiao-San Luo; Albert L. Juhasz; Lena Q. Ma
Source:
Environmental science & technology 2019 v.53 no.24 pp. 14264-14272
ISSN:
1520-5851
Subject:
absorption; acetates; arsenic; bioavailability; cadmium; chlorides; digestive tract; enamel; environmental science; humans; intestines; mice; oxyanions; sodium arsenate; technology
Abstract:
... Soils are often co-contaminated with As, Pb, and Cd. To what extent ingested metal(loid)s interact with each other in the gastrointestinal tract and influence their RBA (relative bioavailability) is largely unknown. Three soils predominantly contaminated with As (MS, mining/smelting impacted), Pb (WR, wire rope production impacted), and Cd (EP, enamel pottery production impacted) were administered ...
DOI:
10.1021/acs.est.9b03656

67. Anthropogenic atmospheric toxic metals emission inventory and its spatial characteristics in Guangdong province, China

Author:
Qing'e Sha; Menghua Lu; Zhijiong Huang; Zibing Yuan; Guanglin Jia; Xiao Xiao; Yuqi Wu; Zhiwei Zhang; Cheng Li; Zhuangmin Zhong; Junyu Zheng
Source:
Science of the total environment 2019 v.670 pp. 1146-1158
ISSN:
0048-9697
Subject:
adverse effects; arsenic; batteries; bioavailability; cadmium; cement; chromium; coal; combustion; emissions; emissions factor; factories; fluorescent lamps; gasoline; human health; humans; inventories; iron; issues and policy; lead; mercury; particulates; risk; river deltas; steel; toxicity; uncertainty; China
Abstract:
... Atmospheric toxic metals (TMs) may cause adverse effects on the environment and human health due to their bioavailability and toxicity. High-resolution TMs emission inventory is important input data for assessing human exposure risks, especially synergistic toxicity of multiple toxic metals. By using the latest city- and enterprise-level environment statistical data, an emission inventory of five ...
DOI:
10.1016/j.scitotenv.2019.03.206

68. Anthropogenic spherules in Zuari estuary, south west coast of India

Author:
Suhas S. Shetye; N.G. Rudraswami; K. Nandakumar; Saiprasad Manjrekar
Source:
Marine pollution bulletin 2019 v.143 pp. 1-5
ISSN:
0025-326X
Subject:
aluminum oxide; antimony; arsenic; calcium; calcium oxide; coasts; elemental composition; estuaries; ferrous oxide; fly ash; glass; lead; magnesium oxide; marine environment; paints; pavements; silica; sodium; traffic; water pollution; India
Abstract:
... In this study we report silica rich anthropogenic spherules from the marine environment. We found spherical, dumbbell, teardrop and fused spherules in Zuari estuary (near the Dona paula jetty), south west coast of India. The spherules were composed of SiO2 (69.8%), Na2O (13.2%), CaO (8.8%), MgO (3.8%), and traces of Al2O3, and FeO. Their high Na and Ca contents rules out the possibility of being a ...
DOI:
10.1016/j.marpolbul.2019.03.058

69. Antimony speciation and potential ecological risk of metal(loid)s in plain wetlands in the lower Yangtze River valley, China

Author:
Cheng Yao; Xia Jiang; Feifei Che; Kun Wang; Li Zhao
Source:
Chemosphere 2019 v.218 pp. 1114-1121
ISSN:
0045-6535
Subject:
antimony; arsenic; basins; cadmium; chromium; copper; eutrophication; fabrics; freshwater; lead; nickel; risk; river valleys; sediments; statistical analysis; toxic substances; toxicity; water pollution; water treatment; wetlands; zinc; China; Yangtze River
Abstract:
... Increasing attention is being paid to Sb as a primary hazardous substance, and further systematic studies of Sb behavior in freshwater wetlands are required. The plain wetlands in Lake Taihu basin located in lower Yangtze River valley, are heavily populated and economically developed area in China. The plain wetlands receive polluted water from point sources (textile and printing plants). In this ...
DOI:
10.1016/j.chemosphere.2018.11.164

70. Antimony tolerance and accumulation in a metallicolous and a non-metallicolous population of Salvia spinosa L.

Author:
Shakiba Rajabpoor; Seyed Majid Ghaderian; Henk Schat
Source:
Plant and soil 2019 v.437 no.1-2 pp. 11-20
ISSN:
0032-079X
Subject:
Salvia spinosa; antimony; arsenic; byproducts; hydroponics; mineralization; roots; shoots; soil; toxicity; Iran
Abstract:
... AIMS: Antimony (Sb) is locally found at potentially toxic concentrations in mineralized soils, usually together with arsenic (As). However, local adaptation of plant populations to Sb toxicity has never been shown thus far. Here we compared Sb tolerance and accumulation between a non-metallicolous (NM) population of Salvia spinosa, and a con-specific metallicolous (M) population from a strongly Sb ...
DOI:
10.1007/s11104-019-03961-x

71. Antioxidant Properties and Arsenic Speciation of Ultrafiltration and Nanofiltration Derived Abalone Viscera Hydrolysate Fraction

Author:
Wuyin Weng; Jieyu Li; Ting Li; Yanjun Ye
Source:
Journal of aquatic food product technology 2019 v.28 no.1 pp. 64-73
ISSN:
1547-0636
Subject:
2,2-diphenyl-1-picrylhydrazyl; abalone; animal organs; antioxidant activity; antioxidants; arsenates; arsenic; arsenites; ascorbic acid; hydrolysates; leucine; lipid peroxidation; molecular weight; nanofiltration; potassium; sodium; ultrafiltration
Abstract:
... A fraction with molecular weight of 0.2–1.0 kDa was prepared from abalone viscera hydrolysate by ultrafiltration and nanofiltration. The contents of protein, carbohydrate, and fat in abalone viscera were 45.75%, 18.19%, and 13.60%, respectively. The protein in abalone viscera hydrolysate faction (AVHF) reached up to 75.73%, while carbohydrate and fat fell to 1.80% and 0.20%, respectively. The leuc ...
DOI:
10.1080/10498850.2018.1561570

72. The Application of Expectation and Standard Deviation Calculations in the Evaluation of Dissolved Arsenic in the Pu River, Liaoning Province, Northeastern China

Author:
Xue Feng; Haozhen Zhang; Liangliang Li; Kan Zhang; Tieliang Wang
Source:
Bulletin of environmental contamination and toxicology 2019 v.102 no.1 pp. 84-91
ISSN:
0007-4861
Subject:
arsenic; pollution control; rivers; standard deviation; water pollution; China
Abstract:
... Water samples were collected from the Pu River in 2017 to research the distribution and accumulation characteristics of dissolved arsenic. We mainly built three types of expectation and standard deviation calculations corresponding to discrete, weighted and continuous random variables. The continuous expectation and standard deviation calculations are defined based on the concentration function an ...
DOI:
10.1007/s00128-018-2503-5

73. Application of Mg–Al layered double hydroxide for treating acidic mine wastewater: a novel approach to sludge reduction

Author:
Mir Tamzid Rahman; Tomohito Kameda; Takao Miura; Shogo Kumagai; Toshiaki Yoshioka
Source:
Chemistry in ecology 2019 v.35 no.2 pp. 128-142
ISSN:
1029-0370
Subject:
aluminum; anion exchange; anions; arsenates; arsenic; calcium hydroxide; cations; coprecipitation; ferric hydroxide; iron; iron oxyhydroxides; magnesium; pollution control; sludge; wastewater
Abstract:
... To reduce sludge volume, Mg–Al layered double hydroxide (LDH) was used to remove pollutants from mine wastewater. Mg–Al LDH can remove both cations and anions from mine wastewater via co-precipitation and anion exchange mechanisms, respectively. We herein investigated the difference in removal efficiencies between Mg–Al LDH and Ca(OH)₂. Initial As and Fe concentrations of 8.4 and 308.6 mg/L led to ...
DOI:
10.1080/02757540.2018.1534964

74. Application of an agro-industrial waste for the removal of As (III) in a counter-current multiphase fluidized bed

Author:
D. De; V. Aniya; B. Satyavathi
Source:
International journal of environmental science and technology 2019 v.16 no.1 pp. 279-294
ISSN:
1735-1472
Subject:
Millettia pinnata; adsorption; agricultural wastes; arsenic; biodiesel; biosorbents; biosorption; developing countries; fluidized beds; groundwater; liquids; oilseed cakes; particle size; pollution; regression analysis; sorption isotherms; surface area
Abstract:
... Arsenic pollution in groundwater has been identified as a major hazard in developing countries. In this purview, Karanja or Pongamia pinnata seed cake, a biodiesel residue has been proposed to being utilized to curb the arsenic menace using an agro-industrial waste. The study investigates the biosorption of As (III) onto thermally activated de-oiled karanja seed cake (TAKB) with a surface area of ...
DOI:
10.1007/s13762-018-1651-9

75. Application of different single extraction procedures for assessing the bioavailability of heavy metal(loid)s in soils from overlapped areas of farmland and coal resources

Author:
Ping Luo; Xin Xiao; Xiaoxuan Han; Yu Ma; Xiaofei Sun; Jiachao Jiang; Hui Wang
Source:
Environmental science and pollution research international 2019 v.26 no.15 pp. 14932-14942
ISSN:
0944-1344
Subject:
EDTA (chelating agent); acetic acid; aerial parts; agricultural land; ammonium; ammonium acetate; arsenic; bioaccumulation factor; bioavailability; cadmium; chromium; citric acid; coal; copper; crops; foliar uptake; heavy metals; lead; risk; roots; soil; straw; tissues; wheat; zinc; China
Abstract:
... Heavy metal(loid) extraction from soils in overlapped areas of farmland and coal resources (OAFCR) is crucial in understanding heavy metal bioavailability in soil and the subsequent risks to crops and consumers. However, limited attention has been paid to the extraction procedure of heavy metal(loid)s in OAFCR soils in the research. This study therefore explored different single and mixed extracti ...
DOI:
10.1007/s11356-019-04833-8

76. Application of enrichment factor, geoaccumulation index, and ecological risk index in assessing the elemental pollution status of surface sediments

Author:
Ley Juen Looi; Ahmad Zaharin Aris; Fatimah Md. Yusoff; Noorain Mohd Isa; Hazzeman Haris
Source:
Environmental geochemistry and health 2019 v.41 no.1 pp. 27-42
ISSN:
0269-4042
Subject:
aqua regia; arsenic; atomic absorption spectrometry; barium; cadmium; chromium; coasts; cobalt; copper; guidelines; issues and policy; lead; nickel; pollutants; pollution; risk; sediments; zinc; Malaysia
Abstract:
... Sediment can accumulate trace elements in the environment. This study profiled the magnitude of As, Ba, Cd, Co, Cu, Cr, Ni, Pb, Se, and Zn pollution in surface sediments of the west coast of Peninsular Malaysia. Trace elements were digested using aqua regia and were analyzed using the inductively coupled plasma-mass spectrometry. The extent of elemental pollution was evaluated using with the enric ...
DOI:
10.1007/s10653-018-0149-1

77. Application of metallurgical slag to treat geothermal wastewater with high concentrations of arsenic and boron

Author:
B. M. Mercado-Borrayo; M. Solís-López; R. Schouwenaars; R. M. Ramírez-Zamora
Source:
International journal of environmental science and technology 2019 v.16 no.5 pp. 2373-2384
ISSN:
1735-1472
Subject:
United States Environmental Protection Agency; adsorbents; adsorption; arsenic; boron; experimental design; pH; pollutants; pollution control; response surface methodology; scanning electron microscopes; slags; toxicity; wastewater; wastewater irrigation
Abstract:
... The reuse of geothermal wastewater for irrigation is an attractive alternative for supplying water demand in agriculture, due to the high volumes generated in geothermal plants. This application is limited by the presence of toxic semimetals such as arsenic and boron, which generally require high-cost commercial adsorbents for removal. This work studies the removal mechanism and process optimizati ...
DOI:
10.1007/s13762-018-1952-z

78. Application of modified electrospun nanofiber membranes with α-Fe2O3 nanoparticles in arsenate removal from aqueous media

Author:
Pegah Bahmani; Afshin Maleki; Hiua Daraei; Reza Rezaee; Mehrdad Khamforoush; Saeed Dehestani Athar; Fardin Gharibi; Amir Hossein Ziaee; Gordon McKay
Source:
Environmental science and pollution research international 2019 v.26 no.21 pp. 21993-22009
ISSN:
0944-1344
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; adsorption; arsenates; arsenic; contact angle; energy-dispersive X-ray analysis; filtration; heavy metals; hematite; models; nanofibers; nanoparticles; nitrates; pH; polyacrylonitrile; porosity; scanning electron microscopy; sodium hydroxide; solvents; sorption isotherms; sulfates
Abstract:
... In the present study, electrospun nanofiber membranes (ENMs) of polyacrylonitrile (PAN) were modified by dispersing α-Fe₂O₃ nanoparticles, synthesized using a thermal solvent process, in a PAN solution. The morphology and physiochemical properties of the prepared ENMs and the α-Fe₂O₃ were characterized using FESEM, EDX, BET, XRD, FTIR, porosity, and contact angle measurement. XPS was used to inves ...
DOI:
10.1007/s11356-019-05228-5

79. Application of modified receptor model for soil heavy metal sources apportionment: a case study of an industrial city, China

Author:
Yufeng Li; Zhongqiu Zhao; Ye Yuan; Peitian Zhu; Xuezhen Li; Anning Guo; Qiao Yang
Source:
Environmental science and pollution research 2019 v.26 no.16 pp. 16345-16354
ISSN:
0944-1344
Subject:
agricultural land; arsenic; cadmium; case studies; chromium; copper; heavy metals; lead; mercury; models; nickel; pollution; soil types; traffic; zinc; China
Abstract:
... As we all know, geochemical data usually contain outliers and they are heterogeneous, which will severely affect the use of receptor models based on classical estimates. In this paper, an advanced modified RAPCS-RGWR (robust absolute principal component scores-robust geographically weighted regression) receptor model was introduced to analyze the pollution sources of eight heavy metals (Cd, Hg, As ...
DOI:
10.1007/s11356-019-04973-x

80. Application of volume retarded osmosis – Low pressure membrane hybrid process for recovery of heavy metals in acid mine drainage

Author:
Jungwon Choi; Sung-Ju Im; Am Jang
Source:
Chemosphere 2019 v.232 pp. 264-272
ISSN:
0045-6535
Subject:
EDTA (chelating agent); acid mine drainage; arsenic; cadmium; copper; economic valuation; heavy metals; iron; lead; manganese; metal ions; nanofiltration; osmosis; osmotic pressure; ultrafiltration; zinc
Abstract:
... Recovery of heavy metals in acid mine drainage (AMD) such as Mn, Fe, Cu, Zn, As, Cd and Pb was evaluated using volume retarded osmosis and low-pressure membrane (VRO-LPM) process. In VRO-LPM process, the draw solution (DS) is regenerated by the naturally generated pressure, giving its economic value. Ethylenediaminetetraacetic acid tetrasodium salt (EDTA-4Na) and Poly (sodium-4-styrenesulfonate, P ...
DOI:
10.1016/j.chemosphere.2019.05.209

81. Applications of biological sulfate reduction for remediation of arsenic – A review

Author:
Raquibul Alam; Kerry McPhedran
Source:
Chemosphere 2019 v.222 pp. 932-944
ISSN:
0045-6535
Subject:
acid mine drainage; adsorption; arsenic; bioreactors; bioremediation; carbon; groundwater; groundwater treatment; heavy metals; hydrogen sulfide; iron; metabolism; pH; sediments; sulfate-reducing bacteria; sulfates; volatilization
Abstract:
... The application of biological sulfate reduction technologies have an excellent potential for removing arsenic from groundwater, acid mine drainage, and sediments, among other matrices. Under sulfate reducing conditions, arsenic can be removed from waters by precipitating as an orpiment-like phase (As2S3), a realgar-like phase (AsS) or an arsenopyrite-like phase (FeAsS). Alternatively, it can be re ...
DOI:
10.1016/j.chemosphere.2019.01.194

82. Applied statistical functions and multivariate analysis of geochemical compositional data to evaluate mineralization in Glojeh polymetallic deposit, NW Iran

Author:
F. Darabi-Golestan; A. Hezarkhani
Source:
Frontiers of earth science 2019 v.13 no.1 pp. 229-246
ISSN:
2095-0195
Subject:
aluminum; antimony; arsenic; copper; epigenetics; factor analysis; gold; lead; magnesium; manganese; mercury; mineralization; models; regression analysis; silver; strontium; t-test; tin; Iran
Abstract:
... Various genesis of epithermal veins as well as host rock cause complication in the modeling process. Thus LINEST and controlling function were applied to improve the accuracy and the quality of the model. The LINEST is a model which is based on multiple linear regression and refers to a branch of applied statistics. This method concerns directly to the application of t-test (TINV and TDIST to anal ...
DOI:
10.1007/s11707-018-0705-0

83. Appraising spatial variations of As, Fe, Mn and NO3 contaminations associated health risks of drinking water from Surma basin, Bangladesh

Author:
Nasir Ahmed; Md. Bodrud-Doza; Abu Reza Md. Towfiqul Islam; Shahadat Hossain; Md. Moniruzzaman; Nipa Deb; Md. Abdul Quaiyum Bhuiyan
Source:
Chemosphere 2019 v.218 pp. 726-740
ISSN:
0045-6535
Subject:
World Health Organization; adults; arsenic; basins; children; drinking water; geographic information systems; geostatistics; groundwater; guidelines; health effects assessments; ingestion; iron; kriging; manganese; minerals; nitrates; risk; risk characterization; rocks; spatial variation; water quality standards; weathering; Bangladesh
Abstract:
... This study aims to appraise the spatial variations and pathways of groundwater contaminations and associated health risks in the Surma basin, Bangladesh using geostatistics, Fuzzy GIS technique and health risk modelbased on ninety groundwater samples. The results show that the mean concentrations of As, Fe, Mn and NO₃ are below the Bangladesh water quality standard, whereas As, Fe and Mn concentra ...
DOI:
10.1016/j.chemosphere.2018.11.104

84. Are Myriophyllum alterniflorum biomarker responses to arsenic stress differentially affected by hydrodynamic conditions?

Author:
Maha Krayem; Véronique Deluchat; Philippe Hourdin; Pascal Labrousse
Source:
Chemosphere 2019 v.225 pp. 497-506
ISSN:
0045-6535
Subject:
Myriophyllum; arsenic; biomarkers; branching; carotenoids; cell respiration; chlorophyll; environmental monitoring; hydrodynamics; hydrogen peroxide; macrophytes; osmotic pressure; photosynthesis; phytoremediation; root growth; roots; shoots; toxicity; water quality
Abstract:
... Arsenic (As) is a significant contaminant in the environment and its detection through macrophytes can provide a powerful tool. Myriophyllum alterniflorum constitutes a good candidate by virtue of its ability to accumulate contaminants, and moreover its biomarkers can respond to the presence of trace metals and metalloids. The objective of this study therefore is to evaluate the watermilfoil respo ...
DOI:
10.1016/j.chemosphere.2019.03.065

85. Are There as Many Essential and Non-essential Minerals in Hydroponic Strawberry (Fragaria ananassa L.) Compared to Those Grown in Soil?

Author:
Seong Hwa Jeon; Saranya Kuppusamy; Young-Eun Yoon; Hyeon Tae Kim; Yong Bok Lee
Source:
Biological trace element research 2019 v.187 no.2 pp. 562-567
ISSN:
0163-4984
Subject:
Fragaria ananassa; aluminum; arsenic; cadmium; calcium; chromium; cobalt; copper; fruit composition; fruits; germanium; hydroponics; iron; lead; leaves; magnesium; manganese; mercury; mineral content; minerals; molybdenum; nickel; palladium; rubidium; selenium; sodium; soil; strawberries; strontium; toxicity; vanadium; zinc
Abstract:
... The present study aims to compare the contents of minerals (essential major—K, Ca, Mg, Na, P, S; essential trace—Fe, Mn, Zn, Cu, B, Mo, As, Se, Ni, V, Cr, Co; non-essential—Sn, Ga, Li, Be, Rb, Sr, Al, Pd, Cd, Hg, Pb, Ge) in strawberry (stem, leaf, and fruit) cultivated in two different cultivation systems, soil and hydroponic. The concentrations of 30 minerals in the acid-digested strawberry sampl ...
DOI:
10.1007/s12011-018-1394-y

86. Arsanilic acid contributes more to total arsenic than roxarsone in chicken meat from Chinese markets

Author:
Di Zhao; Jueyang Wang; Daixia Yin; Mengya Li; Xiaoqiang Chen; Albert L. Juhasz; Jun Luo; Ana Navas-Acien; Hongbo Li; Lena Q. Ma
Source:
Journal of hazardous materials 2019 pp. -
ISSN:
0304-3894
Subject:
adults; arsanilic acid; arsenic; bladder; chicken meat; cities; dietary exposure; geographical variation; health effects assessments; lung neoplasms; poultry production; roxarsone; world markets; China
Abstract:
... Organoarsenicals have been used in poultry production for years, however, studies focused on roxarsone (ROX), with little attention to p-arsanilic acid (ASA). We assessed As concentration and speciation in chicken meat collected from 10 cities in China. The geometric mean for total As in 249 paired raw and cooked samples was 4.85 and 7.27 μg kg–1 fw, respectively. Among 81 paired raw and cooked sa ...
DOI:
10.1016/j.jhazmat.2019.121178

87. Arsenate and microbial dynamics in different phosphorus regimes of the subtropical Pacific Ocean

Author:
Fuminori Hashihama; Shuhei Suwa; Jota Kanda; Makoto Ehama; Ryousuke Sakuraba; Shinko Kinouchi; Mitsuhide Sato; Tamaha Yamaguchi; Hiroaki Saito; Yoshitoshi Ogura; Tetsuya Hayashi; Hiroshi Mori; Ken Kurokawa; Shotaro Suzuki; Koji Hamasaki
Source:
Progress in oceanography 2019 v.176 pp. 102115
ISSN:
0079-6611
Subject:
Prochlorococcus; alkaline phosphatase; arsenates; arsenic; bioassays; detection limit; enzyme activity; euphotic zone; excretion; genes; metabolism; microbial growth; microorganisms; phosphates; phosphorus; summer; surface water; toxicity; Pacific Ocean
Abstract:
... Biologically toxic arsenate is physicochemically similar to biologically essential phosphate. Because arsenate and phosphate are indiscriminately incorporated by microbes, their ambient concentration ratios can be an important factor controlling microbial growth and metabolism. This study investigated the spatial distributions of arsenate and phosphate and the associated biogeochemical dynamics in ...
DOI:
10.1016/j.pocean.2019.05.007

88. Arsenate disrupts ion balance, sulfur and nitric oxide metabolisms in roots and leaves of pea (Pisum sativum L.) plants

Author:
Marta Rodríguez-Ruiz; María V. Aparicio-Chacón; José M. Palma; Francisco J. Corpas
Source:
Environmental and experimental botany 2019 v.161 pp. 143-156
ISSN:
0098-8472
Subject:
Pisum sativum; animal and human health; arsenates; arsenic; biochemical pathways; biosynthesis; enzyme activity; enzymes; gamma-aminobutyric acid; glutamic acid; glutathione; leaves; lipids; models; nitric oxide; nitrogen; oxidation; oxidative stress; oxygen; peas; phytochelatins; plant growth; pods; pollution; proline; risk; roots; sulfur
Abstract:
... Arsenic (As) pollution is a significant environmental problem worldwide. Although this metalloid affects plant growth and productivity, it is usually associated with oxidative stress which affects a diverse range of metabolic pathways. However, an additional hazard of As is its presence in edible parts of plants which constitutes a potential animal and human health risk. We exposed 20-d-old pea (P ...
DOI:
10.1016/j.envexpbot.2018.06.028

89. Arsenate phytoextraction abilities of one-year-old tree species and its effects on the nutritional element content in plant organs

Author:
Sylwia Budzyńska; Magdalena Krzesłowska; Przemysław Niedzielski; Piotr Goliński; Mirosław Mleczek
Source:
International journal of phytoremediation 2019 v.21 no.10 pp. 1019-1031
ISSN:
1549-7879
Subject:
Acer pseudoplatanus; Betula pendula; Quercus robur; Ulmus; arsenates; arsenic; calcium; hydroponics; magnesium; nutrient content; phytoaccumulation; plant organs; polluted soils; potassium; roots; shoots; silicon; sodium; trees
Abstract:
... The aim of the study was to evaluate the As phytoextraction potential of four tree species: Acer pseudoplatanus L., Betula pendula Roth., Quercus robur L., and Ulmus laevis Pall. in light of their prospective use in the phytoremediation of arsenate [As(V)] contaminated soils. The content of nutritional elements: B, Ca, K, Mg, Na, Si, P, and S was also analyzed. The trees were grown for 1 month in ...
DOI:
10.1080/15226514.2019.1594684

90. Arsenic Application Changed Growth, Photo-Synthetic Pigments and Antioxidant Enzymes Activity in Sorghum (Sorghum bicolor L.) Under Salinity Stress

Author:
B. Talebi; M. Heidari; H. Ghorbani
Source:
Scientia Agriculturae Bohemica 2019 v.50 no.3 pp. 155-163
ISSN:
1805-9430
Subject:
Sorghum bicolor; anthocyanins; antioxidant enzymes; arsenic; carotenoids; catalase; chlorophyll; enzyme activity; food chain; leaves; peroxidase; photosynthesis; phytomass; roots; salinity; salt stress; seedlings; shoots; soil; stomatal conductance; tissues; wildlife
Abstract:
... The elevation of arsenic (As) content in soils is of considerable concern with respect to its uptake by plant and subsequent entry into wildlife and human food chains. The treatment of sorghum seedlings with As as NaH₂As₄O. 7H₂O at various concentrations (A₁ = 0, A₂ = 20, A₃ = 40 and A₄ = 60 mg As kg⁻¹ soil) and salinity at four different levels (S₁ = 0, S₂ = 3, S₃ = 6 and S₃ = 9 dS m⁻¹) reduced f ...
DOI:
10.2478/sab-2019-0021

91. Arsenic Bioaccumulation and Biotransformation in Clams (Asaphis violascens) Exposed to Inorganic Arsenic: Effects of Species and Concentrations

Author:
Wei Zhang; Zhiqiang Guo; Yun Wu; Yanlong Qiao; Li Zhang
Source:
Bulletin of environmental contamination and toxicology 2019 v.103 no.1 pp. 114-119
ISSN:
0007-4861
Subject:
arsenic; bioaccumulation; biotransformation; cacodylic acid; clams; geographical distribution; humans; methylation; toxicity
Abstract:
... High arsenic (As) concentrations are found in marine clams, usually as less-toxic arsenobetaine (AsB). However, when clams were exposed to elevated As concentrations in the environments, As species distribution within them may be altered. This study aimed to determine As bioaccumulation and biotransformation in marine clams (Asaphis violascens) along As concentration gradients for 10 days. Nine tr ...
DOI:
10.1007/s00128-018-2493-3

92. Arsenic Contamination in Rice Grown Under Anaerobic Condition in Arid Agriculture: Assessment and Remediation

Author:
Muhammad Mahmood-ul-Hassan; Munazza Yousra; Rizwan Ahmad; Sair Sarwar
Source:
Bulletin of environmental contamination and toxicology 2019 v.103 no.6 pp. 865-870
ISSN:
0007-4861
Subject:
anaerobic conditions; arsenic; grain yield; iron; paddies; plant growth; remediation; rice; soil; soil sampling; straw; sulfates; surveys
Abstract:
... Arsenic (As) concentrations in fine (2) and coarse (3) rice varieties belonging to Hafizabad, Gujranwala and Sheikhupura districts was assessed initially by means of field survey, followed by pot experiments. Bulk soil samples collected from same rice districts (Hafizabad and Gujtanwala) were spiked with As (0, 10, 20 mg kg⁻¹) and each was amended with iron sulphate (0, 25, 50 g kg⁻¹) to investiga ...
DOI:
10.1007/s00128-019-02730-x

93. Arsenic Drinking Water Violations Decreased across the United States Following Revision of the Maximum Contaminant Level

Author:
Stephanie A. Foster; Michael J. Pennino; Jana E. Compton; Scott G. Leibowitz; Molly L. Kile
Source:
Environmental science & technology 2019 v.53 no.19 pp. 11478-11485
ISSN:
1520-5851
Subject:
United States Environmental Protection Agency; arsenic; carcinogenicity; environmental science; information systems; maximum contaminant level; public health
Abstract:
... Arsenic poses a threat to public health due to widespread environmental prevalence and known carcinogenic effects. In 2001, the US EPA published the Final Arsenic Rule (FAR) for public drinking water, reducing the maximum contaminant level (MCL) from 50 to 10 μg/L. We investigated impacts of the FAR on drinking water violations temporally and geographically using the Safe Drinking Water Informatio ...
DOI:
10.1021/acs.est.9b02358
PubMed:
31502444
PubMed Central:
PMC7075409

94. Arsenic Exposure and Effects in Humans: A Mini-Review in Brazil

Author:
Annaliza Carvalho Meneguelli de Souza; Marcelo Gomes de Almeida; Inácio Abreu Pestana; Cristina Maria Magalhães de Souza
Source:
Archives of environmental contamination and toxicology 2019 v.76 no.3 pp. 357-365
ISSN:
0090-4341
Subject:
aquifers; arsenic; foods; herbicides; humans; mining; physicochemical properties; sediments; surface water; toxicity; water pollution; wood preservatives; Brazil
Abstract:
... Arsenic (As) is widely studied in several countries due to its toxicity to biota in the environment. Arsenic sources may be natural or anthropogenic, and the mobility of the element is ruled by physicochemical conditions that also define the dominant As species in the environment. Arsenic levels are evaluated in various abiotic and biotic environmental samples. The highest As levels are observed i ...
DOI:
10.1007/s00244-018-00586-6

95. Arsenic Oxidation by Flavin-Derived Reactive Species under Oxic and Anoxic Conditions: Oxidant Formation and pH Dependence

Author:
Kunfu Pi; Ekaterina Markelova; Peng Zhang; Philippe Van Cappellen
Source:
Environmental science & technology 2019 v.53 no.18 pp. 10897-10905
ISSN:
1520-5851
Subject:
arsenic; catalase; isopropyl alcohol; oxidants; oxidation; oxygen; pH; pollution; riboflavin; technology
Abstract:
... Flavins are ubiquitous redox-active compounds capable of producing reactive oxygen (O₂•–, •OH, and H₂O₂) and flavin radical species in natural environments, yet their roles in the redox transformations of environmental contaminants, such as arsenic (As), remain to be investigated. Here, we show that reduced flavins can be a source of effective oxidants for As(III) under both oxic and anoxic condit ...
DOI:
10.1021/acs.est.9b03188

96. Arsenic Partitioning Behavior During Sludge Co-combustion: Thermodynamic Equilibrium Simulation

Author:
Jingyong Liu; Candie Xie; Wuming Xie; Xiaochun Zhang; KenLin Chang; Jian Sun; Jiahong Kuo; Wenhao Xie; Chao Liu; Shuiyu Sun; Musa Buyukada; Fatih Evrendilek
Source:
Waste and biomass valorization 2019 v.10 no.8 pp. 2297-2307
ISSN:
1877-2641
Subject:
air; aluminum oxide; arsenic; arsenic oxide; calcium oxide; carbon dioxide; chlorides; combustion; ferric oxide; nitrogen; oxygen; sewage sludge; silica; thermodynamics; volatilization
Abstract:
... Using the computation method of thermodynamic equilibrium, effects of sewage sludge (SS) co-combustion conditions and interactions with Fe₂O₃, SiO₂, CaO and Al₂O₃ on migration and transformation of arsenic (As) were simulated in oxy-fuel (CO₂/O₂) and air (N₂/O₂) atmospheres. Arsenic mainly existed as As(s), As₄(g), As₂O₅(s), As₄O₆(g) and AsO(g) and volatilized more easily in reducing than oxidizin ...
DOI:
10.1007/s12649-018-0248-3

97. Arsenic Partitioning in High-Temperature Ash Deposits during Oxy-fuel Combustion

Author:
Huimin Liu; Xin Sun; Yueming Wang; Chan Zou; Chunbo Wang; Jost O. L. Wendt
Source:
Energy & fuels 2019 v.34 no.1 pp. 863-870
ISSN:
1520-5029
Subject:
adsorption; aerosols; air; aluminum; aluminum silicates; arsenic; calcium; cations; coal; combustion; iron; oxygen; particle size distribution; sodium sulfate; surface area; temperature; vapors
Abstract:
... A temperature-controlled ash deposition probe was applied to collect temporally resolved deposit samples in a 100 kW rated down-fired pilot-scale combustor under two atmospheres: (1) air condition and (2) 70% O₂ as inlet gas (named as OXY70). The mineral compositions, particle size distributions, and partitioning of arsenic in the inside and outside deposits were measured. The properties of the as ...
DOI:
10.1021/acs.energyfuels.9b02969

98. Arsenic Release and Attenuation Processes in a Groundwater Aquifer During Anaerobic Remediation of TCE with Biostimulation

Author:
Suzy Smith; R. Ryan Dupont; Joan E. McLean
Source:
Ground water monitoring & remediation 2019 v.39 no.3 pp. 61-70
ISSN:
1069-3629
Subject:
aquifers; arsenic; carbon; carbonates; dechlorination; drinking water; geochemistry; groundwater; iron oxides; leaching; oils; remediation; sediments; solubility; solubilization; solvents; standard deviation; trichloroethylene; whey; Utah
Abstract:
... Arsenic in groundwater in excess of the drinking water limit is usually from natural sources. The release of As, however, can be amplified by anthropogenic inputs of carbon, including those associated with the remediation of chlorinated solvents such as trichloroethylene (TCE). Large laboratory columns (15.2 cm diameter, 183 cm long) packed with aquifer solids from a TCE contaminated site near Hil ...
DOI:
10.1111/gwmr.12340

99. Arsenic Removal from a Highly Contaminated Groundwater by a Combined Coagulation-Filtration-Adsorption Process

Author:
A. Chiavola; E. D’Amato; P. Sirini; C. Caretti; R. Gori
Source:
Water, air, and soil pollution 2019 v.230 no.4 pp. 87
ISSN:
0049-6979
Subject:
adsorbents; adsorption; air; arsenic; coagulants; coagulation; cost estimates; drainage; drinking water; electrolytes; filtration; groundwater; groundwater contamination; iron; iron oxides; laws and regulations; liquids; mining; mixing; mixing ratio; pH; remediation; sand
Abstract:
... The aim of the present experimental study was to perform a technical-economic evaluation of a combined treatment system, consisting of coagulation-flocculation or rapid sand filtration as pre-treatment followed by column adsorption, for reducing the arsenic concentration from approximately 1 mg/L to below the limit set for groundwater remediation and drinking water, i.e., 0.01 mg/L, according to t ...
DOI:
10.1007/s11270-019-4142-9

100. Arsenic Removal of Contaminated Soils by Phytoremediation of Vetiver Grass, Chara Algae and Water Hyacinth

Author:
Mohammad Milad Taleei; Narjessadat Karbalaei Ghomi; Seyed Ali Jozi
Source:
Bulletin of environmental contamination and toxicology 2019 v.102 no.1 pp. 134-139
ISSN:
0007-4861
Subject:
Chara vulgaris; Chrysopogon zizanioides; Eichhornia crassipes; adsorption; algae; arsenic; phytoremediation; polluted soils; thermodynamics
Abstract:
... This research has been carried out for assessing phytoremediation of contaminated soils with 4 concentrations of arsenic by three plants, namely Vetiver grass (Vetiveria zizanioides), Chara algae (Chara vulgaris) and Water hyacinth (Hyacintus orientalis). The experimental results showed that at least two sampling times were significantly different. In addition, at least two plants were also signif ...
DOI:
10.1007/s00128-018-2495-1