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1. Decay rates of zoonotic pathogens and viral surrogates in soils amended with biosolids and manures and comparison of qPCR and culture derived rates

Author:
Roberts, B.N.; Bailey, R.H.; McLaughlin, M.R.; Brooks, J.P.
Source:
The Science of the total environment 2016 v.573 pp. 671-679
ISSN:
0048-9697
Subject:
Campylobacter jejuni; Clostridium perfringens; Escherichia coli O157; Listeria monocytogenes; Salmonella; biosolids; cattle manure; clay loam soils; coliphages; food pathogens; phosphates; quantitative analysis; quantitative polymerase chain reaction; risk assessment; sandy loam soils; soil amendments; solid wastes; swine
Abstract:
... The purpose of this study was to establish inactivation decay constants of foodborne pathogens and coliphage in clay and sandy soils for future "downstream" analyses such as quantitative microbial risk analysis and to compare cultivation-dependent and -independent (e.g. qPCR) methods.Salmonella enterica, Campylobacter jejuni, Listeria monocytogenes, Escherichia coli O157:H7, and Clostridium perfri ...
DOI:
10.1016/j.scitotenv.2016.08.088
Chorus Open Access:
10.1016/j.scitotenv.2016.08.088

2. A geostatistical approach to identify and mitigate agricultural nitrous oxide emission hotspots

Author:
Turner, P.A.; Griffis, T.J.; Mulla, D.J.; Baker, J.M.; Venterea, R.T.
Source:
The Science of the total environment 2016 v.572 pp. 442-449
ISSN:
0048-9697
Subject:
agricultural soils; data analysis; geostatistics; greenhouse gas emissions; models; nitrogen; nitrogen fertilizers; nitrous oxide; soil amendments; soil sampling; Corn Belt region; Minnesota
Abstract:
... Anthropogenic emissions of nitrous oxide (N2O), a trace gas with severe environmental costs, are greatest from agricultural soils amended with nitrogen (N) fertilizer. However, accurate N2O emission estimates at fine spatial scales are made difficult by their high variability, which represents a critical challenge for the management of N2O emissions. Here, static chamber measurements (n=60) and so ...
DOI:
10.1016/j.scitotenv.2016.08.094
Chorus Open Access:
10.1016/j.scitotenv.2016.08.094

3. Recent advances in simultaneous analysis of bisphenol A and its conjugates in human matrices: Exposure biomarker perspectives

Author:
Andra, Syam S.; Austin, Christine; Yang, Juan; Patel, Dhavalkumar; Arora, Manish
Source:
The Science of the total environment 2016 v.572 pp. 770-781
ISSN:
0048-9697
Subject:
adverse effects; biomarkers; bisphenol A; chromatography; exposure assessment; humans; ionization; metabolism; pollution; solid phase extraction; spectrometers; sulfates
Abstract:
... Human exposures to bisphenol A (BPA) has attained considerable global health attention and represents one of the leading environmental contaminants with potential adverse health effects including endocrine disruption. Current practice of measuring of exposure to BPA includes the measurement of unconjugated BPA (aglycone) and total (both conjugated and unconjugated) BPA; the difference between the ...
DOI:
10.1016/j.scitotenv.2016.07.062
PubMed:
27586167
PubMed Central:
PMC5099122

4. Water management impacts rice methylmercury and the soil microbiome

Author:
Rothenberg, Sarah E.; Anders, Merle; Ajami, Nadim J.; Petrosino, Joseph F.; Balogh, Erika
Source:
The Science of the total environment 2016 v.572 pp. 608-617
ISSN:
0048-9697
Subject:
Oryza sativa; drying; farmers; genes; grain yield; mercury; methylmercury compounds; microbiome; ribosomal RNA; rice; rice soils; roots; water conservation
Abstract:
... Rice farmers are pressured to grow rice using less water. The impacts of water-saving rice cultivation methods on rice methylmercury concentrations are uncertain. Rice (Oryza sativa L. cv. Nipponbare) was cultivated in fields using four water management treatments, including flooded (no dry-downs), alternating wetting and drying (AWD) (with one or three dry-downs), and furrow-irrigated fields (nin ...
DOI:
10.1016/j.scitotenv.2016.07.017
PubMed:
27450246
PubMed Central:
PMC5099098
Chorus Open Access:
10.1016/j.scitotenv.2016.07.017

5. The identification of carbamazepine biodegrading phylotypes and phylotypes sensitive to carbamazepine exposure in two soil microbial communities

Author:
Thelusmond, Jean-Rene; Strathmann, Timothy J.; Cupples, Alison M.
Source:
The Science of the total environment 2016 v.571 pp. 1241-1252
ISSN:
0048-9697
Subject:
Flavobacterium; Rhodobacteraceae; Sphingomonas; Xanthomonadaceae; aerobic conditions; agricultural soils; anaerobic conditions; biodegradation; biosolids; drugs; ecosystems; experimental design; exposure duration; genes; high-throughput nucleotide sequencing; human health; irrigation; metagenomics; oxygen; pharmacokinetics; phylogeny; phylotype; prediction; risk; soil microorganisms; soil quality; solid phase extraction; wastewater
Abstract:
... Carbamazepine (CBZ), an antiepileptic drug, has been introduced into agricultural soils via irrigation with treated wastewater and biosolids application. Such contamination is problematic because CBZ is persistent and the risks to ecosystems or human health are unknown. The current study examined CBZ biodegradation in two agricultural soils (soil 1 and 2) and the effects on the soil microbial comm ...
DOI:
10.1016/j.scitotenv.2016.07.154
Chorus Open Access:
10.1016/j.scitotenv.2016.07.154

6. Soil organic matter influences cerium translocation and physiological processes in kidney bean plants exposed to cerium oxide nanoparticles

Author:
Majumdar, Sanghamitra; Peralta-Videa, Jose R.; Trujillo-Reyes, Jesica; Sun, Youping; Barrios, Ana C.; Niu, Genhua; Margez, Juan P. Flores-; Gardea-Torresdey, Jorge L.
Source:
The Science of the total environment 2016 v.569-570 pp. 201-211
ISSN:
0048-9697
Subject:
cerium; ascorbate peroxidase; oxidative stress; stomatal conductance; stems; bioavailability; carotenoids; photosynthesis; organic production; tissues; leaves; plant growth; soil organic matter; greenhouse production; soil; pigments; catalase; ceric oxide; kidney beans; physiological transport; nanoparticles; chlorophyll
Abstract:
... Soil organic matter plays a major role in determining the fate of the engineered nanomaterials (ENMs) in the soil matrix and effects on the residing plants. In this study, kidney bean plants were grown in soils varying in organic matter content and amended with 0–500mg/kg cerium oxide nanoparticles (nano-CeO2) under greenhouse condition. After 52days of exposure, cerium accumulation in tissues, pl ...
DOI:
10.1016/j.scitotenv.2016.06.087
Chorus Open Access:
10.1016/j.scitotenv.2016.06.087

7. Western Lake Erie Basin: Soft-data-constrained, NHDPlus resolution watershed modeling and exploration of applicable conservation scenarios

Author:
Yen, Haw; White, Michael J.; Arnold, Jeffrey G.; Keitzer, S. Conor; Johnson, Mari-Vaughn V.; Atwood, Jay D.; Daggupati, Prasad; Herbert, Matthew E.; Sowa, Scott P.; Ludsin, Stuart A.; Robertson, Dale M.; Srinivasan, Raghavan; Rewa, Charles A.
Source:
The Science of the total environment 2016 v.569-570 pp. 1265-1281
ISSN:
0048-9697
Subject:
Soil and Water Assessment Tool model; basins; land use planning; nutrient management; sediments; simulation models; water management; water quality; watersheds; Lake Erie
Abstract:
... Complex watershed simulation models are powerful tools that can help scientists and policy-makers address challenging topics, such as land use management and water security. In the Western Lake Erie Basin (WLEB), complex hydrological models have been applied at various scales to help describe relationships between land use and water, nutrient, and sediment dynamics. This manuscript evaluated the c ...
DOI:
10.1016/j.scitotenv.2016.06.202
Chorus Open Access:
10.1016/j.scitotenv.2016.06.202

8. Avian mercury exposure and toxicological risk across western North America: A synthesis

Author:
Ackerman, Joshua T.; Eagles-Smith, Collin A.; Herzog, Mark P.; Hartman, C. Alex; Peterson, Sarah H.; Evers, David C.; Jackson, Allyson K.; Elliott, John E.; Vander Pol, Stacy S.; Bryan, Colleen E.
Source:
The Science of the total environment 2016 v.568 pp. 749-769
ISSN:
0048-9697
Subject:
adults; birds; blood; databases; ecoregions; eggs; equations; foraging; granivores; habitats; lowest observed effect level; mercury; methylmercury compounds; monitoring; piscivores; pollution; reproduction; risk; salt marshes; tissues; North America
Abstract:
... Methylmercury contamination of the environment is an important issue globally, and birds are useful bioindicators for mercury monitoring programs. The available data on mercury contamination of birds in western North America were synthesized. Original data from multiple databases were obtained and a literature review was conducted to obtain additional mercury concentrations. In total, 29219 origin ...
DOI:
10.1016/j.scitotenv.2016.03.071
PubMed:
27093907
PubMed Central:
PMC5365029

9. Lessons learned: Are engineered nanomaterials toxic to terrestrial plants?

Author:
Reddy, P. Venkata Laxma; Hernandez-Viezcas, J.A.; Peralta-Videa, J.R.; Gardea-Torresdey, J.L.
Source:
The Science of the total environment 2016 v.568 pp. 470-479
ISSN:
0048-9697
Subject:
color; nanomaterials; plants (botany); soil; soil microorganisms; texture; toxicity; uncertainty
Abstract:
... The expansion of nanotechnology and its ubiquitous applications has fostered unavoidable interaction between engineered nanomaterials (ENMs) and plants. Recent research has shown ambiguous results with regard to the impact of ENMs in plants. On one hand, there are reports that show hazardous effects, while on the other hand, some reports highlight positive effects. This uncertainty whether the ENM ...
DOI:
10.1016/j.scitotenv.2016.06.042
Chorus Open Access:
10.1016/j.scitotenv.2016.06.042

10. Mercury risk to avian piscivores across western United States and Canada

Author:
Jackson, Allyson; Evers, David C.; Eagles-Smith, Collin A.; Ackerman, Joshua T.; Willacker, James J.; Elliott, John E.; Lepak, Jesse M.; Vander Pol, Stacy S.; Bryan, Colleen E.
Source:
The Science of the total environment 2016 v.568 pp. 685-696
ISSN:
0048-9697
Subject:
arid lands; atmospheric deposition; basins; birds; blood; breeding; diet; exposure assessment; fish; foraging; habitats; landscapes; mercury; mining; piscivores; relative risk; river deltas; wetlands; wildlife; Arizona; Columbia River; Puget Sound; Saskatchewan
Abstract:
... The widespread distribution of mercury (Hg) threatens wildlife health, particularly piscivorous birds. Western North America is a diverse region that provides critical habitat to many piscivorous bird species, and also has a well-documented history of mercury contamination from legacy mining and atmospheric deposition. The diversity of landscapes in the west limits the distribution of avian pisciv ...
DOI:
10.1016/j.scitotenv.2016.02.197
PubMed:
26996522
PubMed Central:
PMC5461577

11. Adsorption and bioaccessibility of phenanthrene on carbon nanotubes in the in vitro gastrointestinal system

Author:
Li, Wei; Zhao, Jian; Zhao, Qing; Zheng, Hao; Du, Peng; Tao, Shu; Xing, Baoshan
Source:
The Science of the total environment 2016 v.566-567 pp. 50-56
ISSN:
0048-9697
Subject:
pepsin; gastrointestinal system; phenanthrenes; bioavailability; surface area; carbon nanotubes; pollutants; bile salts; adsorbents; graphene; solubilization; desorption; adsorption
Abstract:
... Adsorption and bioaccessibility of phenanthrene on graphite and multiwalled carbon nanotubes (CNTs) were investigated in simulated gastrointestinal fluid using a passive dosing system. The saturated adsorption capacity of phenanthrene on different adsorbents follows an order of hydroxylated CNTs (H-CNTs)>carboxylated CNTs (C-CNTs)>graphitized CNTs (G-CNTs)>graphite, consistent with the order of th ...
DOI:
10.1016/j.scitotenv.2016.04.204
Chorus Open Access:
10.1016/j.scitotenv.2016.04.204

12. Assessing the relationship between groundwater nitrate and animal feeding operations in Iowa (USA)

Author:
Zirkle, Keith W.; Nolan, Bernard T.; Jones, Rena R.; Weyer, Peter J.; Ward, Mary H.; Wheeler, David C.
Source:
The Science of the total environment 2016 v.566-567 pp. 1062-1068
ISSN:
0048-9697
Subject:
agricultural land; animal feeding operations; congenital abnormalities; drinking; drinking water; groundwater; models; neoplasms; nitrate nitrogen; nitrates; regression analysis; risk; swine; wells; Iowa
Abstract:
... Nitrate-nitrogen is a common contaminant of drinking water in many agricultural areas of the United States of America (USA). Ingested nitrate from contaminated drinking water has been linked to an increased risk of several cancers, specific birth defects, and other diseases. In this research, we assessed the relationship between animal feeding operations (AFOs) and groundwater nitrate in private w ...
DOI:
10.1016/j.scitotenv.2016.05.130
PubMed:
27277210
PubMed Central:
PMC4980257

13. Bacterial community composition and structure in an Urban River impacted by different pollutant sources

Author:
Ibekwe, A. Mark; Ma, Jincai; Murinda, Shelton E.
Source:
The Science of the total environment 2016 v.566-567 pp. 1176-1185
ISSN:
0048-9697
Subject:
Acidobacteria; Actinobacteria; Bacteroidetes; Proteobacteria; agricultural runoff; bacteria; bacterial communities; community structure; correspondence analysis; environmental factors; freshwater; indicator species; land use; nitrogen dioxide; pH; pollutants; rivers; sediments; sequence analysis; species diversity; streams; surface water; urban runoff; water quality; watersheds
Abstract:
... Microbial communities in terrestrial fresh water are diverse and dynamic in composition due to different environmental factors. The goal of this study was to undertake a comprehensive analysis of bacterial composition along different rivers and creeks and correlate these to land-use practices and pollutant sources. Here we used 454 pyrosequencing to determine the total bacterial community composit ...
DOI:
10.1016/j.scitotenv.2016.05.168
Chorus Open Access:
10.1016/j.scitotenv.2016.05.168

14. Effects of arbuscular mycorrhizae on tomato yield, nutrient uptake, water relations, and soil carbon dynamics under deficit irrigation in field conditions

Author:
Bowles, Timothy M.; Barrios-Masias, Felipe H.; Carlisle, Eli A.; Cavagnaro, Timothy R.; Jackson, Louise E.
Source:
The Science of the total environment 2016 v.566-567 pp. 1223-1234
ISSN:
0048-9697
Subject:
Solanum lycopersicum; carbon; carbon dioxide; crop yield; deficit irrigation; drought; evapotranspiration; exudation; farms; flowering; fruit set; genotype; greenhouse gas emissions; irrigation management; leaves; microbial biomass; mutants; mycorrhizal fungi; nitrogen; nutrient uptake; organic production; phosphorus; photosynthesis; roots; sap; soil; stomatal conductance; tomatoes; vesicular arbuscular mycorrhizae; water content; water stress; water uptake; water use efficiency
Abstract:
... Plant strategies to cope with future droughts may be enhanced by associations between roots and soil microorganisms, including arbuscular mycorrhizal (AM) fungi. But how AM fungi affect crop growth and yield, together with plant physiology and soil carbon (C) dynamics, under water stress in actual field conditions is not well understood. The well-characterized mycorrhizal tomato (Solanum lycopersi ...
DOI:
10.1016/j.scitotenv.2016.05.178
Chorus Open Access:
10.1016/j.scitotenv.2016.05.178

15. Septic systems as hot-spots of pollutants in the environment: Fate and mass balance of micropollutants in septic drainfields

Author:
Yang, Yun-Ya; Toor, Gurpal S.; Wilson, P. Chris; Williams, Clinton F.
Source:
The Science of the total environment 2016 v.566-567 pp. 1535-1544
ISSN:
0048-9697
Subject:
acetaminophen; biodegradation; hormones; leaching; lysimeters; personal care products; septic systems; sewage effluent; sorption; sucralose; sulfamethoxazole; wastewater; wastewater treatment; water quality
Abstract:
... Septic systems, a common type of onsite wastewater treatment systems, can be an important source of micropollutants in the environment. We investigated the fate and mass balance of 17 micropollutants, including wastewater markers, hormones, pharmaceuticals and personal care products (PPCPs) in the drainfield of a septic system. Drainfields were replicated in lysimeters (1.5m length, 0.9m width, 0. ...
DOI:
10.1016/j.scitotenv.2016.06.043
Chorus Open Access:
10.1016/j.scitotenv.2016.06.043

16. A review of the environmental implications of in situ remediation by nanoscale zero valent iron (nZVI): Behavior, transport and impacts on microbial communities

Author:
Lefevre, Emilie; Bossa, Nathan; Wiesner, Mark R.; Gunsch, Claudia K.
Source:
The Science of the total environment 2016 v.565 pp. 889-901
ISSN:
0048-9697
Subject:
adverse effects; cell membranes; cytotoxicity; ecosystems; environmental factors; environmental impact; groundwater; iron; microbial communities; oxidative stress; physicochemical properties; reactive oxygen species; remediation; soil; toxicity testing
Abstract:
... The increasing use of strategies incorporating nanoscale zero valent iron (nZVI) for soil and groundwater in situ remediation is raising some concerns regarding the potential adverse effects nZVI could have on indigenous microbial communities and ecosystem functioning. This review provides an overview of the current literature pertaining to the impacts of nZVI applications on microbial communities ...
DOI:
10.1016/j.scitotenv.2016.02.003
PubMed:
26897610
PubMed Central:
PMC5217753

17. Comparing nearshore benthic and pelagic prey as mercury sources to lake fish: the importance of prey quality and mercury content

Author:
Karimi, Roxanne; Chen, Celia Y.; Folt, Carol L.
Source:
The Science of the total environment 2016 v.565 pp. 211-221
ISSN:
0048-9697
Subject:
animal growth; bioaccumulation; energy content; energy metabolism; fish; fish consumption; fish feeds; foraging; habitats; humans; invertebrates; lakes; mercury; models; risk; summer; weight gain; wildlife; zooplankton
Abstract:
... Mercury (Hg) bioaccumulation in fish poses well-known health risks to wildlife and humans through fish consumption. Yet fish Hg concentrations are highly variable, and key factors driving this variability remain unclear. One little studied source of variation is the influence of habitat-specific feeding on Hg accumulation in lake fish. However, this is likely important because most lake fish feed ...
DOI:
10.1016/j.scitotenv.2016.04.162
PubMed:
27173839
PubMed Central:
PMC4939281

18. Occurrence of methicillin-resistant Staphylococcus aureus in surface waters near industrial hog operation spray fields

Author:
Hatcher, S.M.; Myers, K.W.; Heaney, C.D.; Larsen, J.; Hall, D.; Miller, M.B.; Stewart, J.R.
Source:
The Science of the total environment 2016 v.565 pp. 1028-1036
ISSN:
0048-9697
Subject:
antibiotic resistance; genetic markers; humans; mass spectrometry; methicillin; methicillin-resistant Staphylococcus aureus; multiple drug resistance; surface water; swine; waste lagoons; North Carolina
Abstract:
... Industrial hog operations (IHOs) have been identified as a source of antibiotic-resistant Staphylococcus aureus, including methicillin-resistant S. aureus (MRSA). However, few studies have investigated the presence of antibiotic-resistant S. aureus in the environment near IHOs, specifically surface waters proximal to spray fields where IHO liquid lagoon waste is sprayed. Surface water samples (n=1 ...
DOI:
10.1016/j.scitotenv.2016.05.083
Chorus Open Access:
10.1016/j.scitotenv.2016.05.083

19. Phytostabilization of mine tailings using compost-assisted direct planting: Translating greenhouse results to the field

Author:
Gil-Loaiza, Juliana; White, Scott A.; Root, Robert A.; Solís-Dominguez, Fernando A.; Hammond, Corin M.; Chorover, Jon; Maier, Raina M.
Source:
The Science of the total environment 2016 v.565 pp. 451-461
ISSN:
0048-9697
Subject:
Acacia greggii; Bouteloua dactyloides; Festuca arizonica; Meliaceae; Prosopis; arsenic; bacteria; canopy; composts; domestic animals; gravel; greenhouse experimentation; greenhouses; indigenous species; irrigation; lead; mine tailings; pH; phytoremediation; plant establishment; planting; plants (botany); plate count; rhizosphere; soil; sowing; toxicity
Abstract:
... Standard practice in reclamation of mine tailings is the emplacement of a 15 to 90cm soil/gravel/rock cap which is then hydro-seeded. In this study we investigate compost-assisted direct planting phytostabilization technology as an alternative to standard cap and plant practices. In phytostabilization the goal is to establish a vegetative cap using native plants that stabilize metals in the root z ...
DOI:
10.1016/j.scitotenv.2016.04.168
PubMed:
27183459
PubMed Central:
PMC4921306

20. Bacterial diversity and composition in major fresh produce growing soils affected by physiochemical properties and geographic locations

Author:
Ma, Jincai; Ibekwe, A. Mark; Yang, Ching-Hong; Crowley, David E.
Source:
The Science of the total environment 2016 v.563-564 pp. 199-209
ISSN:
0048-9697
Subject:
agricultural soils; bacterial communities; carbon; clay; clay fraction; community structure; correspondence analysis; edaphic factors; electrical conductivity; fresh produce; green leafy vegetables; neural networks; nitrogen content; pH; sequence analysis; water holding capacity; Arizona; California
Abstract:
... Microbial diversity of agricultural soils has been well documented, but information on leafy green producing soils is limited. In this study, we investigated microbial diversity and community structures in 32 (16 organic, 16 conventionally managed soils) from California (CA) and Arizona (AZ) using pyrosequencing, and identified factors affecting bacterial composition. Results of detrended correspo ...
DOI:
10.1016/j.scitotenv.2016.04.122
Chorus Open Access:
10.1016/j.scitotenv.2016.04.122