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You searched for: Journal Chemosphere Remove constraint Journal: Chemosphere Publication Year 2020 Remove constraint Publication Year: 2020 Source 2020 v.246 Remove constraint Source: 2020 v.246
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1. A comprehensive review of mathematical models developed for the estimation of organic disinfection byproducts

Author:
Ike, Ikechukwu A.; Karanfil, Tanju; Ray, Schindra Kumar; Hur, Jin
Source:
Chemosphere 2020 v.246 pp. 125797
ISSN:
0045-6535
Subject:
absorbance; byproducts; comparative study; disinfection; dissolved organic matter; fluorescence; mathematical models; spectral analysis
Abstract:
... In this review, we present comparative and comprehensive views on the foundations, potentials and limitations of the previously reported mathematical models for the estimation of the concentration of disinfection byproducts (DBPs) generated during the chlor(am)ination of water. To this end, DBPs models were divided into two major categories: static variable (SV) and dynamic variable (DV) or differ ...
DOI:
10.1016/j.chemosphere.2019.125797

2. A critical review about neurotoxic effects in marine mammals of mercury and other trace elements

Author:
López-Berenguer, G.; Peñalver, J.; Martínez-López, E.
Source:
Chemosphere 2020 v.246 pp. 125688
ISSN:
0045-6535
Subject:
Cetacea; Pinnipedia; Ursus maritimus; brain; ethics; liver; mercury; methylmercury compounds; neurotoxicity; population dynamics; systematic review; tissues; trace elements; whales
Abstract:
... Marine mammals are more exposed to mercury (Hg) than any others animals in the world. As many trace elements, Hg it is able to impair the brain function, which could be a cause of population decline. Nevertheless, these issues have been scarcely studied because of the technical and ethical difficulties. We conducted a systematic review about marine mammals’ brain exposition to Hg and other trace e ...
DOI:
10.1016/j.chemosphere.2019.125688

3. Adsorption and photocatalytic degradation of benzene compounds on acidic F-TiO2/SiO2 catalyst

Author:
Qiu, Lu; Li, Hanliang; Dai, Fangwei; Ouyang, Feng; Pang, Dandan; Wang, Hongjie
Source:
Chemosphere 2020 v.246 pp. 125698
ISSN:
0045-6535
Subject:
Fourier transform infrared spectroscopy; adsorption; catalysts; chlorobenzene; irradiation; moieties; photocatalysis; pollutants; silica; solar radiation; titanium dioxide
Abstract:
... The adsorption and photocatalytic degradation performance of F-TiO₂/SiO₂ catalyst towards a series of benzene compounds were studied. The results revealed that the F-TiO₂/SiO₂ catalyst is superior to TiO₂ P25 in adsorption capacity and photocatalytic degradation under simulant sunlight irradiation. The adsorptive capacity for chlorobenzene is the highest and the degradation rate is the greatest am ...
DOI:
10.1016/j.chemosphere.2019.125698

4. Adsorption behavior of dyes from an aqueous solution onto composite magnetic lignin adsorbent

Author:
Hu, Lishuang; Guang, Chunyu; Liu, Yang; Su, Zengqiang; Gong, Shida; Yao, Yajing; Wang, Yanping
Source:
Chemosphere 2020 v.246 pp. 125757
ISSN:
0045-6535
Subject:
acidity; adsorbents; adsorption; alkalinity; aqueous solutions; cross-linking reagents; desorption; dyes; iron; iron oxides; lignin; lignosulfonates; magnetic properties; magnetism; models; organic carbon; pH; temperature; wastewater treatment; water pollution; water resources
Abstract:
... Magnetic lignosulfonate functional materials that were known to remove several types of dye from water effectively were prepared. The surface of an iron (II,III) oxide (Fe₃O₄) sample was coated with a layer of organic carbon, and magnetic lignosulfonate (FCS) was synthesised by a crosslinking agent. The morphology, structure, stability and magnetic properties of the materials were characterised by ...
DOI:
10.1016/j.chemosphere.2019.125757

5. A fluorescence microplate assay based on molecularly imprinted silica coated quantum dot optosensing materials for the separation and detection of okadaic acid in shellfish

Author:
Zhang, Zeming; Yu, Xinru; Zhao, Jian; Shi, Xizhi; Sun, Aili; Jiao, Haifeng; Xiao, Tingting; Li, Dexiang; Chen, Jiong
Source:
Chemosphere 2020 v.246 pp. 125622
ISSN:
0045-6535
Subject:
antibodies; biometry; cold; detection limit; fluorescence; marine toxins; molecular imprinting; okadaic acid; polymers; quantum dots; shellfish; silica; solvents; standard deviation
Abstract:
... Molecularly imprinted polymers (MIPs) are attracting substantial interest as artificial plastic antibodies because of their biometric capability for targeting small molecules. In this study, molecularly imprinted silica material-coated quantum dots (MIS-QDs) with selective recognition capability to okadaic acid (OA) were developed and characterized. The synthesized MIS-QDs with specific imprinting ...
DOI:
10.1016/j.chemosphere.2019.125622

6. A follow-up study on the characterization and health risk assessment of heavy metals in ambient air particles emitted from a municipal waste incinerator in Zhejiang, China

Author:
Xu, Peiwei; Chen, Yuan; He, Shengliang; Chen, Weizhong; Wu, Lizhi; Xu, Dandan; Chen, Zhijian; Wang, Xiaofeng; Lou, Xiaoming
Source:
Chemosphere 2020 v.246 pp. 125777
ISSN:
0045-6535
Subject:
air; air pollution; atomic absorption spectrometry; autumn; carcinogenicity; children; health effects assessments; heavy metals; incinerators; inhalation exposure; lead; manganese; particulates; primary contact; risk; wastes; China
Abstract:
... To confirm our hypothesis that inhalation might be the primary exposure route of heavy metals for children living in proximity to a municipal waste incinerator (MWI), we conducted a one-year follow up study to characterize the distributions of heavy metals featured in different types of ambient air particles, including PM₁, PM₂.₅ and PM₁₀, at two exposure sites near the MWI (E1 and E2) and one con ...
DOI:
10.1016/j.chemosphere.2019.125777

7. Age- and season-specific effects of ambient particles (PM1, PM2.5, and PM10) on daily emergency department visits among two Chinese metropolitan populations

Author:
Zhang, Yunquan; Fang, Jiaying; Mao, Feiyue; Ding, Zan; Xiang, Qianqian; Wang, Wei
Source:
Chemosphere 2020 v.246 pp. 125723
ISSN:
0045-6535
Subject:
air pollutants; air pollution; children; cities; cold; confidence interval; elderly; gender differences; meteorological parameters; particulates; regression analysis; risk; China
Abstract:
... Ambient PM₂.₅ has been identified as the top leading cause of risk-attributable deaths worldwide, particularly in China. Evidence suggested that PM₁ contributed the most majority of PM₂.₅ concentrations in Chinese cities. However, epidemiologic knowledge to date is of wide lack regarding PM₁-associated health effects.We collected daily records of all-cause emergency department visits (EDVs) and gr ...
DOI:
10.1016/j.chemosphere.2019.125723

8. A metabolomics study: CdTe/ZnS quantum dots induce polarization in mice microglia

Author:
He, Keyu; Liang, Xue; Wei, Tingting; Liu, Na; Wang, Yan; Zou, Linyue; Bai, Changcun; Yao, Ying; Wu, Tianshu; Kong, Lu; Zhang, Ting; Xue, Yuying; Tang, Meng
Source:
Chemosphere 2020 v.246 pp. 125629
ISSN:
0045-6535
Subject:
aerobiosis; biochemical pathways; caudal vein; cell lines; databases; fluorescent antibody technique; gas chromatography-mass spectrometry; glucose; glycolysis; hippocampus; image analysis; in vitro studies; in vivo studies; interleukin-1beta; metabolomics; mice; neuroglia; neurons; neurotoxicity; nitric oxide; quantum dots; risk; spectrometers; tumor necrosis factor-alpha; zinc sulfide
Abstract:
... In this study, a metabolomic analysis was used to reveal the neurotoxicity of the CdTe/ZnS QDs via microglia polarization. A gas chromatography-mass spectrometer (GC-MS) was applied to uncover the metabonomic changes in microglia (BV-2 cell line) after exposure to 1.25 μM CdTe/ZnS QDs. 11 annotated metabolic pathways (KEGG database) were significantly changed in all exposed groups (3 h, 6 h, 12 h) ...
DOI:
10.1016/j.chemosphere.2019.125629

9. Analysis of spectrometry and thermodynamics of the metallothionein in freshwater crab Sinopotamon henanense for its binding ability with different metals

Author:
Yang, Hui Zhen; Wang, Lu; He, Yong J.; Jing, Wei X.; Ma, Wen L.; Chen, Chien M.; Wang, Lan
Source:
Chemosphere 2020 v.246 pp. 125670
ISSN:
0045-6535
Subject:
atomic absorption spectrometry; binding capacity; binding sites; cadmium; calorimetry; circular dichroism spectroscopy; copper; crabs; geometry; lead; metal ions; metallothionein; models; stoichiometry; thermodynamics; titration; zinc
Abstract:
... The metal binding nature of heterologously expressed metallothionein of Sinopotamon henanense (ShMT) had been demonstrated previously. In this study, we analysed the stoichiometry of ShMT yielded in vivo and exchange reactions of the Zn-ShMT with Cd²⁺, Pb²⁺ and Cu²⁺in vitro via electrospray ionization time-of-flight mass spectrometry (ESI-TOF-MS), circular dichroism (CD) spectroscopy, inductively ...
DOI:
10.1016/j.chemosphere.2019.125670

10. An integrated three-dimensional electrochemical system for efficient treatment of coking wastewater rich in ammonia nitrogen

Author:
Wu, Zhenyu; Zhu, Weiping; Liu, Yang; Peng, Pin; Li, Xiuyan; Zhou, Xiaoqi; Xu, Juan
Source:
Chemosphere 2020 v.246 pp. 125703
ISSN:
0045-6535
Subject:
ammonium nitrogen; biofilm; chemical oxygen demand; denitrification; electricity; electrochemistry; electrodes; energy; industrial wastewater; nitrate nitrogen; pollutants; redox reactions; total nitrogen; toxicity
Abstract:
... Coking wastewater is highly toxic and refractory industrial wastewater, and is thus extremely challenging to treat. Currently, most treatment technologies focus on degrading carbonaceous pollutants, while insufficient attention is placed on ammonium nitrogen (NH₄⁺-N), the most important nitrogenous contaminant in coking wastewater and with a high biological toxicity. In the current study, we devel ...
DOI:
10.1016/j.chemosphere.2019.125703

11. A novel concept for the biodegradation mechanism of dianionic catechol with homoprotocatechuate 2,3-dioxygenase: A non-proton-assisted process

Author:
Tu, Ningyu; Zhang, Dongmei; Niu, Xianchun; Du, Cheng; Zhang, Li; Xie, Wenyu; Niu, Xiaojun; Liu, Yang; Li, Youming
Source:
Chemosphere 2020 v.246 pp. 125796
ISSN:
0045-6535
Subject:
Gibbs free energy; biodegradation; catalytic activity; catechol; chemical bonding; cleavage (chemistry); enzymes; epoxides; iron; oxygen
Abstract:
... The theory of “proton-assisted process” can well explain the catalytic mechanism of homoprotocatechuate 2,3-dioxygenase (2,3-HPCD) with a monoanionic substrate (homoprotocatechuate, HPCA). Here a “non-proton-assisted process” is presented to interpret catalytic mechanism of 2,3-HPCD with a dianionic substrate (4-nitrocatechol, 4NC). The ONIOM calculation is performed to investigate the reaction pa ...
DOI:
10.1016/j.chemosphere.2019.125796

12. A novel UASB-MFC dual sensors system for wastewater treatment: On-line sensor recovery and electrode cleaning in the long-term operation

Author:
Liu, Wenbin; Yang, Guang; Jia, Hui; Wang, Jie
Source:
Chemosphere 2020 v.246 pp. 125751
ISSN:
0045-6535
Subject:
ammonium nitrogen; biosensors; calcium; cathodes; chemical oxygen demand; electrochemistry; magnesium; microorganisms; upflow anaerobic sludge blanket reactor; wastewater; wastewater treatment
Abstract:
... In this research, the UASB-MFC dual sensors system was established and treatment the brewery wastewater. The COD removal rate attain about 90% and the NH₄⁺-N concentration less than 15 mg/L, MFCs has a voltage range of 0.34–0.42 V. Meanwhile, as the biosensor for coupling system, MFCs can be used to make simultaneous monitor COD and TVFA. The potential distribution can in-situ accelerate the reatt ...
DOI:
10.1016/j.chemosphere.2019.125751

13. Antagonistic effect of selenium on lead-induced neutrophil apoptosis in chickens via miR-16-5p targeting of PiK3R1 and IGF1R

Author:
Yin, Kai; Cui, Yuan; Sun, Tong; Qi, Xue; Zhang, Yue; Lin, Hongjin
Source:
Chemosphere 2020 v.246 pp. 125794
ISSN:
0045-6535
Subject:
apoptosis; chickens; death domain receptors; ethidium; flow cytometry; fluorescence; gene expression regulation; genes; heavy metals; immunity; insulin-like growth factor I receptor; lead; microRNA; mitochondria; neoplasms; neutrophils; oxidative stress; phosphatidylinositol 3-kinase; pollution; selenium; staining; tumor necrosis factor receptors
Abstract:
... Environmental contamination by heavy metals, such as lead (Pb), can lead to severe immune dysfunction. MicroRNAs (miRNAs) are involved in regulating immunity. Whether Pb can regulate neutrophil apoptosis through miRNA, and whether selenium (Se) can antagonize this response are still unknown. We treated neutrophils with 12.5 μM (CH₃OO)₂Pb and 1 μM Na₂SeO₃ for 3 h, after which apoptosis was evaluate ...
DOI:
10.1016/j.chemosphere.2019.125794

14. AOPs-based remediation of petroleum hydrocarbons-contaminated soils: Efficiency, influencing factors and environmental impacts

Author:
Zhang, Tong; Liu, Yuanyuan; Zhong, Shan; Zhang, Lishan
Source:
Chemosphere 2020 v.246 pp. 125726
ISSN:
0045-6535
Subject:
alkanes; asphaltenes; catalytic activity; cement; cost effectiveness; cyclodextrins; environmental impact; free radicals; glucose; oxidation; petroleum; polluted soils; remediation; resins; soil organic matter; soil pollution; transition elements
Abstract:
... Petroleum hydrocarbons are a class of anthropogenic compounds including alkanes, aromatic hydrocarbons, resins, asphaltenes and other organic matters, and soil pollution caused by petroleum hydrocarbons has drawn increasing interest in recent years. Multiple advanced oxidation processes (AOPs) are emerging to remediate petroleum hydrocarbons-contaminated soils, while very few studies have focused ...
DOI:
10.1016/j.chemosphere.2019.125726

15. Application of an advanced spatiotemporal model for PM2.5 prediction in Jiangsu Province, China

Author:
Zhang, Ting; Liu, Penghui; Sun, Xue; Zhang, Can; Wang, Meng; Xu, Jia; Pu, Shengyan; Huang, Lei
Source:
Chemosphere 2020 v.246 pp. 125563
ISSN:
0045-6535
Subject:
adverse effects; children; cities; elementary schools; elementary students; epidemiological studies; inventories; land use; models; monitoring; particulates; pollution; pollution control; prediction; winter; China
Abstract:
... Either long- or short-term of fine particle (PM₂.₅) exposure is associated with adverse health effects especially for children. Primary school students spend much time in schools whereas PM₂.₅ prediction for such fine-scale places remains a demanding task, let alone a combined prediction with high temporal resolution. The study aimed to estimate PM₂.₅ levels of different time scales for primary sc ...
DOI:
10.1016/j.chemosphere.2019.125563

16. Application of co-composted farm manure and biochar increased the wheat growth and decreased cadmium accumulation in plants under different water regimes

Author:
Bashir, Arooj; Rizwan, Muhammad; Zia ur Rehman, Muhammad; Zubair, Muhammad; Riaz, Muhammad; Qayyum, Muhammad Farooq; Alharby, Hesham F.; Bamagoos, Atif A.; Ali, Shafaqat
Source:
Chemosphere 2020 v.246 pp. 125809
ISSN:
0045-6535
Subject:
Triticum; agricultural soils; animal manures; bioavailability; biochar; cadmium; chlorophyll; composts; drought; leaves; oxidative stress; plant growth; polluted soils; pollution; seeds; soil pH; soil water; soil water retention; sowing; tissues; toxicity; trace elements; water stress; wheat
Abstract:
... Toxic trace element pollution in the agricultural soils may negatively affect the plant growth. This study mainly focused on investigating the impact of co-composted biochar and farmyard manure (FYM) on wheat growth and cadmium (Cd) accumulation by plants. The different ratios of FYM and biochar were composted for two and half months and mixed in Cd-contaminated soil at a rate of 2% w/w of each tr ...
DOI:
10.1016/j.chemosphere.2019.125809

17. Arsenic and arsenic speciation in mushrooms from China: A review

Author:
Zhang, Ji; Barałkiewicz, Danuta; Wang, Yuanzhong; Falandysz, Jerzy; Cai, Chuantao
Source:
Chemosphere 2020 v.246 pp. 125685
ISSN:
0045-6535
Subject:
arsenic; humans; medicine; mushrooms; risk; soil; China
Abstract:
... Arsenic (As) is a natural environmental contaminant to which humans are usually exposed in water, air, soil, and food. China is a typical high-As region, and also a great contributor of the world production of cultivated edible mushrooms and a region abundant in wild growing edible mushrooms. Mushrooms can accumulate different amounts of As and different As compounds, so potential health risk of A ...
DOI:
10.1016/j.chemosphere.2019.125685

18. Artificial soil nutrient, aggregate stability and soil quality index of restored cut slopes along altitude gradient in southwest China

Author:
Zhu, Mengke; Yang, Siqian; Ai, Shenghao; Ai, Xiaoyan; Jiang, Xue; Chen, Jiao; Li, Ruirui; Ai, Yingwei
Source:
Chemosphere 2020 v.246 pp. 125687
ISSN:
0045-6535
Subject:
aggregate stability; altitude; catalase; cumulative distribution; enzyme activity; mountains; nitrogen; phosphorus; potassium; principal component analysis; proteinases; soil aggregates; soil nutrients; soil quality; soil structure; soil texture; soilless media; sucrose alpha-glucosidase; texture; urease; China
Abstract:
... In the subalpine mountainous region of southwest China, the artificial soil properties of restored cut slopes along the altitude gradient were studied, including available nitrogen (AN), available phosphorus (AP), available potassium (AK), urease (UR), sucrase (SC), protease (PR), catalase (CAT), texture, and aggregate stability of soil. Soil aggregatet stability by mean weight diameter (MWD), geo ...
DOI:
10.1016/j.chemosphere.2019.125687

19. Assessing the chemical compositions and disinfection byproduct formation of biofilms: Application of fluorescence excitation-emission spectroscopy coupled with parallel factor analysis

Author:
Li, Lei; Jeon, Youchul; Ryu, Hodon; Santo Domingo, Jorge W.; Seo, Youngwoo
Source:
Chemosphere 2020 v.246 pp. 125745
ISSN:
0045-6535
Subject:
algae; biofilm; biosorption; biotransformation; byproducts; chlorination; disinfection; drinking water; factor analysis; fluorescence; humic substances; monitoring; spectroscopy
Abstract:
... There are increased concerns over the contributions of biofilms to disinfection byproduct (DBP) formation in engineered water systems (EWS). However, monitoring the biomolecular characteristics of biofilms to understand their impacts on DBP formation has been a great challenge as it requires complex analytical techniques. This study aimed to examine the applicability of fluorescence excitation-emi ...
DOI:
10.1016/j.chemosphere.2019.125745

20. Assessment of micro and macroplastics along the west coast of India: Abundance, distribution, polymer type and toxicity

Author:
Maharana, Dusmant; Saha, Mahua; Dar, Jaffer Yousuf; Rathore, Chayanika; Sreepada, R.A.; Xu, Xiang-Rong; Koongolla, J. Bimali; Li, Heng-Xiang
Source:
Chemosphere 2020 v.246 pp. 125708
ISSN:
0045-6535
Subject:
Fourier transform infrared spectroscopy; Litopenaeus vannamei; absorption; antioxidants; beaches; catalase; coasts; ecotoxicology; glutathione transferase; lipid peroxidation; microbeads; oxidation; pellets; pollution; polyethylene; polypropylenes; shrimp; toxicity; India
Abstract:
... Considering the magnitude of pollution caused by marine plastics, the present study assessed their abundance, distribution, surface morphology and polymer type in ten sandy beaches spread across three states (Maharashtra, Karnataka and Goa) along the west coast of India (WCI). The total abundance of plastics (∼1–100 mm) in the studied beaches ranged from 4.1 to 23.4% (19±1–346 ± 2 items/m²). Locat ...
DOI:
10.1016/j.chemosphere.2019.125708