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You searched for: Journal Environmental pollution Remove constraint Journal: Environmental pollution Publication Year 2012 Remove constraint Publication Year: 2012 Source 2012 v.162 Remove constraint Source: 2012 v.162 Text Availability Citation in PubAg Remove constraint Text Availability: Citation in PubAg
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1. Adsorption of mercury on lignin: Combined surface complexation modeling and X-ray absorption spectroscopy studies

Author:
Lv, Jitao; Luo, Lei; Zhang, Jing; Christie, Peter; Zhang, Shuzhen
Source:
Environmental pollution 2012 v.162 pp. 255-261
ISSN:
0269-7491
Subject:
X-radiation; absorption; adsorption; lignin; mercury; models; pH; spectroscopy
Abstract:
... Adsorption of mercury (Hg) on lignin was studied at a range of pH values using a combination of batch adsorption experiments, a surface complexation model (SCM) and synchrotron X-ray absorption spectroscopy (XAS). Surface complexation modeling indicates that three types of acid sites on lignin surfaces, namely aliphatic carboxylic-, aromatic carboxylic- and phenolic-type surface groups, contribute ...
DOI:
10.1016/j.envpol.2011.11.012
PubMed:
22243872

2. Anthropogenic and natural sources of acidity and metals and their influence on the structure of stream food webs

Author:
Hogsden, Kristy L.; Harding, Jon S.
Source:
Environmental pollution 2012 v.162 pp. 466-474
ISSN:
0269-7491
Subject:
acidity; community structure; diet; drainage; fish; food chain; food webs; hydrochemistry; metals; mining; predators; streams; webs; New Zealand
Abstract:
... We compared food web structure in 20 streams with either anthropogenic or natural sources of acidity and metals or circumneutral water chemistry in New Zealand. Community and diet analysis indicated that mining streams receiving anthropogenic inputs of acidic and metal-rich drainage had much simpler food webs (fewer species, shorter food chains, less links) than those in naturally acidic, naturall ...
DOI:
10.1016/j.envpol.2011.10.024
PubMed:
22088498

3. Arsenic in cooked rice: Effect of chemical, enzymatic and microbial processes on bioaccessibility and speciation in the human gastrointestinal tract

Author:
Sun, Guo-Xin; Van de Wiele, Tom; Alava, Pradeep; Tack, Filip; Du Laing, Gijs
Source:
Environmental pollution 2012 v.162 pp. 241-246
ISSN:
0269-7491
Subject:
arsenic; bioavailability; colon; cooking; digestion; food matrix; humans; rice; risk; small intestine; washing
Abstract:
... Rice, used as staple food for half of the world population, can easily accumulate arsenic (As) into its grain, which often leads to As contamination. The health risk induced by presence of As in food depends on its release from the food matrix, i.e., its bioaccessibility. Using an in vitro gastrointestinal simulator, we incubated two types of cooked rice (total As: 0.389 and 0.314 mg/kg). Arsenic ...
DOI:
10.1016/j.envpol.2011.11.021
PubMed:
22243870

4. A sediment ecotoxicity assessment platform for in situ measures of chemistry, bioaccumulation and toxicity. Part 2: Integrated application to a shallow estuary

Author:
Rosen, Gunther; Bart Chadwick, D.; Allen Burton, G.; Keith Taulbee, W.; Greenberg, Marc S.; Lotufo, Guilherme R.; Reible, Danny D.
Source:
Environmental pollution 2012 v.162 pp. 457-465
ISSN:
0269-7491
Subject:
Amphipoda; bioaccumulation; biomimetics; chemical analysis; correlation; ecotoxicology; estuaries; groundwater; microextraction; polycyclic aromatic hydrocarbons; risk assessment; sediments; seepage; toxicity; toxicity testing; water quality; weight-of-evidence
Abstract:
... A comprehensive, weight-of-evidence based ecological risk assessment approach integrating laboratory and in situ bioaccumulation and toxicity testing, passive sampler devices, hydrological characterization tools, continuous water quality sensing, and multi-phase chemical analyses was evaluated. The test site used to demonstrate the approach was a shallow estuarine wetland where groundwater seepage ...
DOI:
10.1016/j.envpol.2011.11.013
PubMed:
22172938

5. A sediment ecotoxicity assessment platform for in situ measures of chemistry, bioaccumulation and toxicity. Part 1: System description and proof of concept

Author:
Burton, G. Allen, Jr.; Rosen, Gunther; Chadwick, D. Bart; Greenberg, Marc S.; Taulbee, W. Keith; Lotufo, Guilherme R.; Reible, Danny D.
Source:
Environmental pollution 2012 v.162 pp. 449-456
ISSN:
0269-7491
Subject:
aquatic organisms; bioaccumulation; chemistry; ecotoxicology; hydrology; metals; remediation; risk; sediments; solid phase microextraction; toxicity; water pollution
Abstract:
... In situ-based testing using aquatic organisms has been widely reported, but is often limited in scope and practical usefulness in making decisions on ecological risk and remediation. To provide this capability, an integrated deployment system, the Sediment Ecotoxicity Assessment (SEA) Ring was developed, which incorporates rapid in situ hydrological, chemical, bioaccumulation, and toxicological Li ...
DOI:
10.1016/j.envpol.2011.11.018
PubMed:
22182967

6. Assessment of N and P status at the landscape scale using environmental models and measurements

Author:
Sonneveld, M.P.W.; de Vos, J.A.; Kros, J.; Knotters, M.; Frumau, A.; Bleeker, A.; de Vries, W.
Source:
Environmental pollution 2012 v.162 pp. 168-175
ISSN:
0269-7491
Subject:
ammonia; compliance; dairy farming; environmental models; environmental quality; groundwater; landscapes; monitoring; nitrogen content; surface water
Abstract:
... We assessed the compliance of a Dutch landscape, dominated by dairy farming, with environmental quality standards using a combination of model calculations and measurements. The total ammonia emission of 2.4 kton NH₃ yr⁻¹ does not exceed the environmental quality standard (2.6 kton NH₃ yr⁻¹). Nevertheless, the total N deposition (on average 24.4 kg N ha⁻¹ yr⁻¹) is such that critical N loads are ex ...
DOI:
10.1016/j.envpol.2011.11.020
PubMed:
22243862

7. Betaproteobacteria dominance and diversity shifts in the bacterial community of a PAH-contaminated soil exposed to phenanthrene

Author:
Martin, Florence; Torelli, Stéphane; Le Paslier, Denis; Barbance, Agnès; Martin-Laurent, Fabrice; Bru, David; Geremia, Roberto; Blake, Gérard; Jouanneau, Yves
Source:
Environmental pollution 2012 v.162 pp. 345-353
ISSN:
0269-7491
Subject:
Acidovorax; DNA; Hydrogenophaga; Rhodocyclaceae; Rhodoferax; bacteria; bacterial communities; biodegradation; constructed wetlands; mineralization; phenanthrene; polycyclic aromatic hydrocarbons; quantitative polymerase chain reaction; runoff; soil; stable isotopes
Abstract:
... In this study, the PAH-degrading bacteria of a constructed wetland collecting road runoff has been studied through DNA stable isotope probing. Microcosms were spiked with ¹³C-phenanthrene at 34 or 337 ppm, and bacterial diversity was monitored over a 14-day period. At 337 ppm, PAH degraders became dominated after 5 days by Betaproteobacteria, including novel Acidovorax, Rhodoferax and Hydrogenopha ...
DOI:
10.1016/j.envpol.2011.11.032
PubMed:
22243884

8. Bioaccumulation of Fe₂O₃(magnetic) nanoparticles in Ceriodaphnia dubia

Author:
Hu, Ji; Wang, Demin; Wang, Jiangtao; Wang, Jianmin
Source:
Environmental pollution 2012 v.162 pp. 216-222
ISSN:
0269-7491
Subject:
Ceriodaphnia dubia; arsenic; bioaccumulation; digestive system; exposure duration; ferric oxide; ingestion; nanoparticles; pH; toxic substances; toxicity
Abstract:
... While nano-Fe₂O₃(magnetic) is generally considered non-toxic, it could serve as a carrier of other toxic chemicals such as As(V) and enhance their toxicity. The bioaccumulation of nano-Fe₂O₃(m) with different exposure times, NP concentrations, and pH conditions was investigated using Ceriodaphnia dubia (C. dubia) as the model organism. Under natural pH conditions, C. dubia significantly accumulate ...
DOI:
10.1016/j.envpol.2011.11.016

9. Biological effects and bioaccumulation of steroidal and phenolic endocrine disrupting chemicals in high-back crucian carp exposed to wastewater treatment plant effluents

Author:
Liu, Jingliang; Wang, Renmin; Huang, Bin; Lin, Chan; Zhou, Jiali; Pan, Xuejun
Source:
Environmental pollution 2012 v.162 pp. 325-331
ISSN:
0269-7491
Subject:
Carassius auratus; Carassius carassius; adverse effects; bioaccumulation; effluents; endocrine-disrupting chemicals; fish; gonadosomatic index; hepatosomatic index; lakes; muscles; phenols; steroids; vitellogenin; wastewater treatment
Abstract:
... Endocrine disrupting chemicals (EDCs) found in wastewater treatment plant (WWTP) effluents have been shown to cause adverse effects, but the uptake of EDCs from effluents (measured in fish muscle) are not known. In this study, the biological effects and bioaccumulation of steroidal and phenolic EDCs were assessed in high-back crucian carp (Carassius auratus) exposed to WWTP effluents for 141 days. ...
DOI:
10.1016/j.envpol.2011.11.036
PubMed:
22243881

10. Brominated flame retardants in three terrestrial passerine birds from South China: Geographical pattern and implication for potential sources

Author:
Sun, Yu-xin; Luo, Xiao-jun; Mo, Ling; Zhang, Qiang; Wu, Jiang-ping; Chen, She-jun; Zou, Fa-sheng; Mai, Bi-xian
Source:
Environmental pollution 2012 v.162 pp. 381-388
ISSN:
0269-7491
Subject:
Passeriformes; birds; electronic wastes; ethane; flame retardants; industry; polybrominated biphenyls; polybrominated diphenyl ethers; recycling; urbanization; China
Abstract:
... Polybrominated diphenyl ethers (PBDEs), decabromodiphenyl ethane (DBDPE), polybrominated biphenyls (PBBs) and pentabromotoluene (PBT) were investigated in light-vented bulbul (LVB), long-tailed shrike (LTS) and oriental magpie-robin (OMR) collected from seven sampling sites in South China. ∑PBDEs, DBDPE, PBB 153, and PBT levels ranged from 35 to 15 000, no detected (nd)-130, nd-6800, and nd-6.8 ng ...
DOI:
10.1016/j.envpol.2011.12.013
PubMed:
22243889

11. Canopy interaction with precipitation and sulphur deposition in two boreal forests of Quebec, Canada

Author:
Marty, C.; Houle, D.; Duchesne, L.; Gagnon, C.
Source:
Environmental pollution 2012 v.162 pp. 354-360
ISSN:
0269-7491
Subject:
boreal forests; canopy; dry deposition; sulfur; summer; throughfall; warm season; winter; Quebec
Abstract:
... The interaction of atmospheric sulphur (S) was investigated within the canopies of two boreal forests in Québec, Canada. The net canopy exchange approach, i.e. the difference between S–SO₄ in throughfall and precipitation, suggests high proportion of dry deposition in winter (up to 53%) as compared to summer (1–9%). However, a 3.5‰ decrease in δ¹⁸O–SO₄ throughfall in summer compared to incident pr ...
DOI:
10.1016/j.envpol.2011.12.007
PubMed:
22243885

12. Changes in hydrocarbon groups, soil ecotoxicity and microbiology along horizontal and vertical contamination gradients in an old landfarming field for oil refinery waste

Author:
Mikkonen, Anu; Hakala, Kati P.; Lappi, Kaisa; Kondo, Elina; Vaalama, Anu; Suominen, Leena
Source:
Environmental pollution 2012 v.162 pp. 374-380
ISSN:
0269-7491
Subject:
aromatic compounds; ecotoxicology; hydrocarbons; microbiology; petroleum; polar compounds; soil; soil biology; soil remediation; toxicity; wastes
Abstract:
... Horizontal and vertical contaminant gradients in an old landfarming field for oil refinery waste were characterised with the aim to assess parallel changes in hydrocarbon groups and general, microbiological and ecotoxicological soil characteristics. In the surface soil polar compounds were the most prevalent fraction of heptane-extractable hydrocarbons, superseding GC–FID-resolvable and high-molar ...
DOI:
10.1016/j.envpol.2011.12.012
PubMed:
22243888

13. Chromate removal as influenced by the structural changes of soil components upon carbonization at different temperatures

Author:
Chen, K.Y.; Liu, J.C.; Chiang, P.N.; Wang, S.L.; Kuan, W.H.; Tzou, Y.M.; Deng, Y.; Tseng, K.J.; Chen, C.C.; Wang, M.K.
Source:
Environmental pollution 2012 v.162 pp. 151-158
ISSN:
0269-7491
Subject:
Fourier transform infrared spectroscopy; air; carbon; carbonization; chromium; heat; nuclear magnetic resonance spectroscopy; potassium chloride; soil organic matter; temperature
Abstract:
... Surface fire could induce heat transferring into the soil, creating a carbonized environment, which may alter the chemical compositions of soil organic matters (SOM). In the study, a surface soil was carbonized at up to 600 °C with limited air to simulate soils experiencing a surface fire, and Cr(VI) removal on the carbonized soils was investigated. NMR and FTIR analyses demonstrated a remarkable ...
DOI:
10.1016/j.envpol.2011.10.036
PubMed:
22243860

14. Comparative tissue and body compartment accumulation and maternal transfer to eggs of perfluoroalkyl sulfonates and carboxylates in Great Lakes herring gulls

Author:
Gebbink, Wouter A.; Letcher, Robert J.
Source:
Environmental pollution 2012 v.162 pp. 40-47
ISSN:
0269-7491
Subject:
Larus argentatus; acids; alcohols; brain; egg masses; eggs; erythrocytes; liver; muscles; pharmacokinetics; sulfonates; Lake Huron
Abstract:
... The comparative accumulation of C₄–C₁₅ perfluorinated sulfonates (PFSAs) and carboxylates (PFCAs), and several precursors (e.g., perfluorooctane sulfonamide, N-methyl-FOSA, and fluorotelomer unsaturated acids and alcohols) was examined in tissues (liver, brain, muscle, and adipose), plasma/red blood cells (RBCs) and whole egg clutches (yolk and albumen) of female herring gulls collected in 2010 fr ...
DOI:
10.1016/j.envpol.2011.10.011
PubMed:
22243845

15. Composting of waste paint sludge containing melamine resin as affected by nutrients and gypsum addition and microbial inoculation

Author:
Tian, Yongqiang; Chen, Liming; Gao, Lihong; Michel, Frederick C., Jr.; Wan, Caixia; Li, Yebo; Dick, Warren A.
Source:
Environmental pollution 2012 v.162 pp. 129-137
ISSN:
0269-7491
Subject:
composting; composts; formaldehyde; gypsum; melamine; microorganisms; nitrogen content; nutrients; paints; resins; sludge
Abstract:
... Melamine formaldehyde resins have hard and durable properties and are found in many products, including automobile paints. These resins contain high concentrations of nitrogen and, if properly composted, can yield valuable products. We evaluated the effects of starter compost, nutrients, gypsum and microbial inoculation on composting of paint sludge containing melamine resin. A bench-scale compost ...
DOI:
10.1016/j.envpol.2011.10.001
PubMed:
22243857

16. Continental scale inverse modeling of common organic water contaminants in European rivers

Author:
Pistocchi, Alberto; Marinov, Dimitar; Pontes, Saudade; Gawlik, Bernd M.
Source:
Environmental pollution 2012 v.162 pp. 159-167
ISSN:
0269-7491
Subject:
emissions; environmental policy; half life; models; rivers; screening; uncertainty; water pollution
Abstract:
... The paper presents an analysis of measured riverine concentrations of 16 common organic water contaminants. From observed concentrations we back-calculate emissions and chemical half lives through a simple inverse model. The analysis does not allow identifying a single half life/emission factor combination, but a set of combinations which are Pareto-optimal (or “non-dominated”). The approach is sh ...
DOI:
10.1016/j.envpol.2011.10.031
PubMed:
22243861

17. Dechlorination of p,p′-DDTs coupled with sulfate reduction by novel sulfate-reducing bacterium Clostridium sp. BXM

Author:
Bao, Peng; Hu, Zheng-Yi; Wang, Xin-Jun; Chen, Jian; Ba, Yu-Xin; Hua, Jing; Zhu, Chun-You; Zhong, Min; Wu, Chun-Yan
Source:
Environmental pollution 2012 v.162 pp. 303-310
ISSN:
0269-7491
Subject:
Clostridium; culture media; dechlorination; genes; metabolites; paddy soils; soil solution; sulfate-reducing bacteria; sulfur
Abstract:
... A novel non-dsrAB (without dissimilatory sulfite reductase genes) sulfate-reducing bacterium (SRB) Clostridium sp. BXM was isolated from a paddy soil. Incubation experiments were then performed to investigate the formation of reduced sulfur compounds (RSC) by Clostridium sp. BXM, and RSC-induced dechlorination of p,p′-DDT in culture medium and soil solution. The RSCs produced were 5.8mM and 4.5mM ...
DOI:
10.1016/j.envpol.2011.11.037
PubMed:
22243878

18. Development of a methodology examining the behaviours of VOCs source apportionment with micro-meteorology analysis in an urban and industrial area

Author:
Xiang, Yang; Delbarre, Hervé; Sauvage, Stéphane; Léonardis, Thierry; Fourmentin, Marc; Augustin, Patrick; Locoge, Nadine
Source:
Environmental pollution 2012 v.162 pp. 15-28
ISSN:
0269-7491
Subject:
data collection; models; summer; turbulent flow; volatile organic compounds
Abstract:
... During summer 2009, online measurements of 25 Volatile Organic Compounds (VOCs) from C6 to C10 as well as micro-meteorological parameters were simultaneously performed in the industrial city of Dunkerque. With the obtained data set, we developed a methodology to examine how the contributions of different source categories depend on atmospheric turbulences, and the results provided identification o ...
DOI:
10.1016/j.envpol.2011.10.012
PubMed:
22243843

19. Development of aquatic life criteria for nitrobenzene in China

Author:
Yan, Zhen-guang; Zhang, Zhi-sheng; Wang, Hong; Liang, Feng; Li, Ji; Liu, Hong-ling; Sun, Cheng; Liang, Li-jun; Liu, Zheng-tao
Source:
Environmental pollution 2012 v.162 pp. 86-90
ISSN:
0269-7491
Subject:
Environmental Protection Agency; accidents; animals; aquatic plants; freshwater; guidelines; toxicity; toxicity testing; water pollution; water quality; China; United States
Abstract:
... Nitrobenzene is a toxic pollutant and was the main compound involved in the Songhuajiang accident in 2007, one of the largest water pollution accidents in China in the last decade. No aquatic life criteria for nitrobenzene have previously been proposed. In this study, published toxicity data of nitrobenzene to Chinese aquatic species were gathered, and six resident Chinese aquatic organisms were u ...
DOI:
10.1016/j.envpol.2011.11.007
PubMed:
22243851

20. Diffuse urban pollution increases metal tolerance of natural heterotrophic biofilms

Author:
Fechner, Lise C.; Gourlay-Francé, Catherine; Bourgeault, Adeline; Tusseau-Vuillemin, Marie-Hélène
Source:
Environmental pollution 2012 v.162 pp. 311-318
ISSN:
0269-7491
Subject:
beta-glucosidase; biofilm; cadmium; copper; environmental quality; lead; metal tolerance; multivariate analysis; nickel; pollution; rivers; urban areas; zinc; France
Abstract:
... This study is a first attempt to investigate the impact of urban contamination on metal tolerance of heterotrophic river biofilms using a short-term test based on β-glucosidase activity. Tolerance levels to Cu, Cd, Zn, Ni and Pb were evaluated for biofilms collected at three sites along an urban gradient in the Seine river (France). Metallic pollution increased along the river, but concentrations ...
DOI:
10.1016/j.envpol.2011.11.033
PubMed:
22243879

21. Distribution of antibiotic resistance in urban watershed in Japan

Author:
Ham, Young-Sik; Kobori, Hiromi; Kang, Joo-Hyon; Matsuzaki, Takayuki; Iino, Michiyo; Nomura, Hayashi
Source:
Environmental pollution 2012 v.162 pp. 98-103
ISSN:
0269-7491
Subject:
Environmental Protection Agency; Escherichia coli; antibiotic resistance; antibiotics; correlation; public health; risk; temporal variation; water quality; watersheds; Japan
Abstract:
... Antibiotic-resistant E. coli concentrations showed large spatial and temporal variations, with greater concentrations observed in tributaries and downstream than in the upstream and midstream. Twenty percent of the geometric mean concentrations of antibiotic-resistant E. coli in the Tama River basin (Japan) exceeded the maximum acceptable concentration of indicator E. coli established by the USEPA ...
DOI:
10.1016/j.envpol.2011.11.002
PubMed:
22243853

22. DNA-damage effect of polycyclic aromatic hydrocarbons from urban area, evaluated in lung fibroblast cultures

Author:
Teixeira, Elba Calesso; Pra, Daniel; Idalgo, Daniele; Henriques, João Antonio Pêgas; Wiegand, Flavio
Source:
Environmental pollution 2012 v.162 pp. 430-438
ISSN:
0269-7491
Subject:
DNA; DNA damage; carcinogenicity; cell culture; fibroblasts; genotoxicity; hamsters; humidity; molecular weight; particulates; polycyclic aromatic hydrocarbons; summer; temperature; traffic; urban areas; wind speed; Brazil
Abstract:
... This study was designed to biomonitor the effect of PAH extracts from urban areas on the DNA of lung cell cultures. The analyses of the polycyclic aromatic hydrocarbons (PAHs) were performed in atmospheric PM₂.₅ and PM₁₀ collected at three sampling sites with heavy traffic located in the Metropolitan Area of Porto Alegre (MAPA) (Brazil). The concentrations of 16 major PAHs were determined accordin ...
DOI:
10.1016/j.envpol.2011.11.030
PubMed:
22243895

23. Does consumption of leafy vegetables grown in peri-urban agriculture pose a risk to human health?

Author:
Nabulo, G.; Black, C.R.; Craigon, J.; Young, S.D.
Source:
Environmental pollution 2012 v.162 pp. 389-398
ISSN:
0269-7491
Subject:
Gynandropsis gynandra; calcium chloride; children; chromium; field experimentation; green leafy vegetables; human health; lead; leaves; risk; screening; soil; soil pollution; toxic substances; urban agriculture; washing; waste disposal; Uganda
Abstract:
... Concentrations of potentially toxic elements were measured in soils and five contrasting tropical leafy vegetables grown in a replicated field trial at five contaminated urban agriculture sites in Kampala City, Uganda. Soil contamination at each site could be tentatively ascribed to known waste disposal practices. There was considerable variation in metal uptake between vegetable types. Washing le ...
DOI:
10.1016/j.envpol.2011.11.040
PubMed:
22243890

24. Does mercury contamination reduce body condition of endangered California clapper rails?

Author:
Ackerman, Joshua T.; Overton, Cory T.; Casazza, Michael L.; Takekawa, John Y.; Eagles-Smith, Collin A.; Keister, Robin A.; Herzog, Mark P.
Source:
Environmental pollution 2012 v.162 pp. 439-448
ISSN:
0269-7491
Subject:
Rallidae; blood; body condition; eggs; feathers; habitats; head; mercury; salt marshes; California
Abstract:
... We examined mercury exposure in 133 endangered California clapper rails (Rallus longirostris obsoletus) within tidal marsh habitats of San Francisco Bay, California from 2006 to 2010. Mean total mercury concentrations were 0.56 μg/g ww in blood (range: 0.15–1.43), 9.87 μg/g fw in head feathers (3.37–22.0), 9.04 μg/g fw in breast feathers (3.68–20.2), and 0.57 μg/g fww in abandoned eggs (0.15–2.70) ...
DOI:
10.1016/j.envpol.2011.12.004
PubMed:
22243896

25. Dorsi-ventral leaf reflectance properties of Carpinus betulus L.: An indicator of urban habitat quality

Author:
Khavanin Zadeh, A.R.; Veroustraete, F.; Wuyts, K.; Kardel, F.; Samson, R.
Source:
Environmental pollution 2012 v.162 pp. 332-337
ISSN:
0269-7491
Subject:
Carpinus betulus; habitats; leaves; pollution; reflectance; Belgium
Abstract:
... The objective of this paper is to give an account of the evaluation of the effect of urban habitat quality on dorsi-ventral leaf reflectance asymmetry to bio-monitor urban habitat pollution. Reflectance in the RGB bands of a reflex camera is measured at the adaxial and abaxial sides of Carpinus betulus L. leaves for two contrasting urban habitats, e.g.; suburban green and industrial habitats in th ...
DOI:
10.1016/j.envpol.2011.11.019
PubMed:
22243882

26. Ecotoxicology and macroecology – Time for integration

Author:
Beketov, Mikhail A.; Liess, Matthias
Source:
Environmental pollution 2012 v.162 pp. 247-254
ISSN:
0269-7491
Subject:
biodiversity; chemistry; ecosystems; ecotoxicology; landscapes; toxic substances
Abstract:
... Despite considerable progress in ecotoxicology, it has become clear that this discipline cannot answer its central questions, such as, “What are the effects of toxicants on biodiversity?” and “How the ecosystem functions and services are affected by the toxicants?”. We argue that if such questions are to be answered, a paradigm shift is needed. The current bottom-up approach of ecotoxicology that ...
DOI:
10.1016/j.envpol.2011.11.011
PubMed:
22243871

27. Effect of long-term equilibration on the toxicity of molybdenum to soil organisms

Author:
van Gestel, Cornelis A.M.; McGrath, Steve P.; Smolders, Erik; Ortiz, Maria Diez; Borgman, Eef; Verweij, Rudo A.; Buekers, Jurgen; Oorts, Koen
Source:
Environmental pollution 2012 v.162 pp. 1-7
ISSN:
0269-7491
Subject:
Collembola; clay soils; drainage; earthworms; ecotoxicology; ions; leaching; long term effects; molybdates; molybdenum; sandy soils; soil solution; toxicity
Abstract:
... To determine if long-term equilibration may alleviate molybdenum toxicity, earthworms, enchytraeids, collembolans and four plant species were exposed to three soils freshly spiked with Na₂MoO₄.2H₂O and equilibrated for 6 or 11 months in the field with free drainage. Total Mo concentrations in soil decreased by leaching, most (up to 98%) in sandy soil and less (54–62%) in silty and clayey soils. Ch ...
DOI:
10.1016/j.envpol.2011.10.013
PubMed:
22243841

28. Effects of multigenerational cadmium exposure of insects (Spodoptera exigua larvae) on anti-oxidant response in haemolymph and developmental parameters

Author:
Kafel, Alina; Zawisza-Raszka, Agnieszka; Szulińska, Elżbieta
Source:
Environmental pollution 2012 v.162 pp. 8-14
ISSN:
0269-7491
Subject:
Spodoptera exigua; body weight; cadmium; correlation; diet; glutathione; glutathione transferase; hemolymph; insects; instars; larvae; metal tolerance; mortality; oxidation; thiols
Abstract:
... Biochemical and organismal indices of metal tolerance were studied in Spodoptera exigua exposed to a cadmium-contaminated diet for one or many (33 or 61) generations. Reduced and oxidised glutathione, protein thiols, total anti-oxidant capacity level, glutathione transferase activity, and Cd accumulation were assayed in the haemolymph of the last instar larvae. The cadmium concentration in the who ...
DOI:
10.1016/j.envpol.2011.09.034
PubMed:
22243842

29. Effects of silicon on the distribution of cadmium compartmentation in root tips of Kandelia obovata (S., L.) Yong

Author:
Ye, Juan; Yan, Chongling; Liu, Jingchun; Lu, Haoliang; Liu, Tao; Song, Zengfeng
Source:
Environmental pollution 2012 v.162 pp. 369-373
ISSN:
0269-7491
Subject:
apoplast; cadmium; cell walls; root tips; seedlings; silicon; symplast; transpiration
Abstract:
... The Effects of silicon (Si) on the distribution of cadmium (Cd) compartmentation in root tips of Kandelia obovata (S., L.) Yong were investigated by pot experiments. Cd concentrations in the apoplastic saps and symplastic fractions of the root tips of K. obovata seedlings were decreased at both Si-supplied treatments. Si addition reduced the concentrations of BaCl₂₋extractable cell-wall-Cd in root ...
DOI:
10.1016/j.envpol.2011.12.002
PubMed:
22243887

30. Evaluation of dissipation gradients of polycyclic aromatic hydrocarbons in rice rhizosphere utilizing a sequential extraction procedure

Author:
Ma, Bin; Wang, Jiaojiao; Xu, Minmin; He, Yan; Wang, Haizhen; Wu, Laosheng; Xu, Jianming
Source:
Environmental pollution 2012 v.162 pp. 413-421
ISSN:
0269-7491
Subject:
bioavailability; microbial biomass; phenanthrene; phytoremediation; polycyclic aromatic hydrocarbons; rhizosphere; rice; soil; toxicity
Abstract:
... The aim of this study was to evaluate the spatial dissipation gradient of PAHs, including phenanthrene, pyrene, and benzo[a]pyrene, with various bioavailability represented with sequential extraction. Dissipation rates of PAHs in the rhizosphere were greater than those in the bulk soil. The n-butanol extracted fraction showed a general trend of dissipation during phytoremediation. Moreover, the fo ...
DOI:
10.1016/j.envpol.2011.10.034
PubMed:
22243893

31. Fluorescent characteristics and metal binding properties of individual molecular weight fractions in municipal solid waste leachate

Author:
Wu, Jun; Zhang, Hua; Shao, Li-Ming; He, Pin-Jing
Source:
Environmental pollution 2012 v.162 pp. 63-71
ISSN:
0269-7491
Subject:
binding properties; cadmium; copper; dissolved organic matter; fluorescence; fractionation; landfill leachates; molecular weight; municipal solid waste; ultrafiltration
Abstract:
... Molecular weight (MW) is a fundamental property of dissolved organic matter (DOM), which potentially affects the binding behavior between DOM and metals. Here, a combined approach of ultrafiltration fractionation, fluorescence excitation-emission matrix quenching and parallel factor analysis (PARAFAC) was employed to elucidate fluorescent characteristics and metal binding properties of individual ...
DOI:
10.1016/j.envpol.2011.10.017
PubMed:
22243848

32. Freely dissolved PBDEs in water and porewater of an urban estuary

Author:
Sacks, Victoria P.; Lohmann, Rainer
Source:
Environmental pollution 2012 v.162 pp. 287-293
ISSN:
0269-7491
Subject:
estuaries; freshwater; hydrophobicity; polybrominated diphenyl ethers; polyethylene; rivers; runoff; samplers; sediments; surface water; wastewater treatment
Abstract:
... Polyethylene passive samplers (PE) were deployed in Narragansett Bay, RI, to examine freely dissolved concentrations of polybrominated diphenyl ethers (PBDEs) in surface, bottom, and sediment porewater. PBDE congeners in the water column and porewater were below 3 pg L⁻¹. In the surface water, only PBDE congeners containing up to 5 bromines were detected, while in the deeper water congeners 153 an ...
DOI:
10.1016/j.envpol.2011.11.028
PubMed:
22243876

33. Hydrogen fluoride damage to vegetation from peri-urban brick kilns in Asia: A growing but unrecognised problem?

Author:
Ahmad, Muhammad Nauman; van den Berg, Leon J.L.; Shah, Hamid Ullah; Masood, Tariq; Büker, Patrick; Emberson, Lisa; Ashmore, Mike
Source:
Environmental pollution 2012 v.162 pp. 319-324
ISSN:
0269-7491
Subject:
air; apricots; bricks; cities; emissions; farmers; hydrogen; interviews; kilns; livelihood; mangoes; plums; trees; urban agriculture; urbanization; vegetation; Pakistan
Abstract:
... The rapid urbanisation of many cities in south and south-east Asia has increased the demand for bricks, which are typically supplied from brick kilns in peri-urban areas. We report visible foliar damage to mango, apricot and plum trees in the vicinity of traditional Bull’s Trench brick kilns in Peshawar, Pakistan. Visible injury symptoms, hydrogen fluoride concentrations in air, and foliar fluorid ...
DOI:
10.1016/j.envpol.2011.11.017
PubMed:
22243880

34. Increased atmospheric deposition of mercury in reference lakes near major urban areas

Author:
Van Metre, Peter C.
Source:
Environmental pollution 2012 v.162 pp. 209-215
ISSN:
0269-7491
Subject:
dry deposition; ecosystems; emissions; lakes; mercury; sediments; urban areas; watersheds; wet deposition; United States
Abstract:
... Atmospheric deposition of Hg is the predominant pathway for Hg to reach sensitive ecosystems, but the importance of emissions on near-field deposition remains unclear. To better understand spatial variability in Hg deposition, mercury concentrations were analyzed in sediment cores from 12 lakes with undeveloped watersheds near to (<50 km) and remote from (>150 km) several major urban areas in the ...
DOI:
10.1016/j.envpol.2011.11.003
PubMed:
22243866

35. Indicating atmospheric sulfur by means of S-isotope in leaves of the plane, osmanthus and camphor trees

Author:
Xiao, Hua-Yun; Wang, Yan-Li; Tang, Cong-Guo; Liu, Cong-Qiang
Source:
Environmental pollution 2012 v.162 pp. 80-85
ISSN:
0269-7491
Subject:
Cinnamomum camphora; Osmanthus fragrans; Platanus orientalis; camphor; isotope fractionation; isotopes; leaves; plant tissues; rain; soil; sulfur; temporal variation; trees
Abstract:
... Foliar δ³⁴S values of three soil-growing plant species (Platanus Orientalis L., Osmanthus fragrans L. and Cinnamomum camphora) have been analyzed to indicate atmospheric sulfur. The foliar δ³⁴S values of the three plant species averaged −3.11±1.94‰, similar to those of both soil sulfur (−3.73±1.04‰) and rainwater sulfate (−3.07±2.74‰). This may indicate that little isotopic fractionation had taken ...
DOI:
10.1016/j.envpol.2011.11.006
PubMed:
22243850

36. Indoor and outdoor poly- and perfluoroalkyl substances (PFASs) in Korea determined by passive air sampler

Author:
Kim, Seung-Kyu; Shoeib, Mahiba; Kim, Kyeong-Soo; Park, Jong-Eun
Source:
Environmental pollution 2012 v.162 pp. 144-150
ISSN:
0269-7491
Subject:
air; alcohols; cities; ethyl acetate; humans; inhalation exposure; perfluorocarbons; sulfonamides; Europe; Korean Peninsula; North America
Abstract:
... Despite concerns to their increasing contribution to ecological and human exposure, the atmospheric levels of poly- and perfluoroalkyl substances (PFASs) have been determined mainly in Europe and North America. This study presents the indoor and outdoor air concentrations of volatile PFASs [fluorotelomer alcohols (FTOHs), and perfluoroalkyl sulfonamides/sulfonamidoethanols/sulfonamide ethyl acetat ...
DOI:
10.1016/j.envpol.2011.10.037
PubMed:
22243859

37. Investigating a high ozone episode in a rural mountain site

Author:
Monteiro, A.; Strunk, A.; Carvalho, A.; Tchepel, O.; Miranda, A.I.; Borrego, C.; Saavedra, S.; Rodríguez, A.; Souto, J.; Casares, J.; Friese, E.; Elbern, H.
Source:
Environmental pollution 2012 v.162 pp. 176-189
ISSN:
0269-7491
Subject:
air quality; industrialization; mathematical models; monitoring; ozone; pollutants; subsidence; time series analysis; Portugal
Abstract:
... A very high ozone episode with observed hourly values above 350 μg m⁻³ occurred in July 2005 at the Lamas d’Olo air quality monitoring station, located in a mountainous area in the north of Portugal. Aiming to identify the origin and formation of this ozone-rich episode, a statistical analysis and a modelling approach were applied. A cross-spectrum analysis in the frequency domain and a synoptic a ...
DOI:
10.1016/j.envpol.2011.11.008
PubMed:
22243863

38. Investigation of antibiotics in mollusks from coastal waters in the Bohai Sea of China

Author:
Li, Wenhui; Shi, Yali; Gao, Lihong; Liu, Jiemin; Cai, Yaqi
Source:
Environmental pollution 2012 v.162 pp. 56-62
ISSN:
0269-7491
Subject:
Meretrix; Mytilus edulis; coastal water; erythromycin; molluscs; quinolones; sulfamonomethoxine; sulfapyridine; China
Abstract:
... This study focused on the presence and distribution of 22 antibiotics, including eight quinolones, nine sulfonamides and five macrolides in mollusks from the Bohai Sea of China. 190 samples of eleven species were collected in 2006, 2007 and 2009. Laboratory analyses revealed that antibiotics were widely distributed in the mollusks with quinolones as the major compounds with concentrations of 0.71∼ ...
DOI:
10.1016/j.envpol.2011.10.022
PubMed:
22243847

39. Long-term persistence of polychlorinated dibenzo-p-dioxins and dibenzofurans in air, soil and sediment around an abandoned pentachlorophenol factory in China

Author:
Li, Cheng; Zheng, Minghui; Zhang, Bing; Gao, Lirong; Liu, Lidan; Zhou, Xin; Ma, Xiaodong; Xiao, Ke
Source:
Environmental pollution 2012 v.162 pp. 138-143
ISSN:
0269-7491
Subject:
air; dibenzofuran; long term effects; pentachlorophenol; polychlorinated dibenzodioxins; rivers; sediments; soil; soil sampling; China
Abstract:
... Air, soils and sediments surrounding an abandoned pentachlorophenol (PCP) factory were sampled to determine the levels of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), unintentionally formed during PCP production. The mean concentration of PCDD/Fs in ambient air was one order of magnitude higher than that of the reference site. A trend of decreasing concentrations with increasing ...
DOI:
10.1016/j.envpol.2011.11.015
PubMed:
22243858

40. Modelling nitrous oxide emissions from grazed grassland systems

Author:
Wang, Junye; Cardenas, Laura M.; Misselbrook, Tom H.; Cuttle, Steve; Thorman, Rachel E.; Li, Changsheng
Source:
Environmental pollution 2012 v.162 pp. 223-233
ISSN:
0269-7491
Subject:
animals; carbon cycle; climate change; data collection; emissions; grasslands; grazing; grazing intensity; methane; models; nitrogen; nitrous oxide; soil; United Kingdom
Abstract:
... Grazed grassland systems are an important component of the global carbon cycle and also influence global climate change through their emissions of nitrous oxide and methane. However, there are huge uncertainties and challenges in the development and parameterisation of process-based models for grazed grassland systems because of the wide diversity of vegetation and impacts of grazing animals. A pr ...
DOI:
10.1016/j.envpol.2011.11.027
PubMed:
22243868

41. Nitrate leaching, direct and indirect nitrous oxide fluxes from sloping cropland in the purple soil area, southwestern China

Author:
Zhou, Minghua; Zhu, Bo; Butterbach-Bahl, Klaus; Wang, Tao; Bergmann, Jessica; Brüggemann, Nicolas; Wang, Zhenhua; Li, Taikui; Kuang, Fuhong
Source:
Environmental pollution 2012 v.162 pp. 361-368
ISSN:
0269-7491
Subject:
cropland; data collection; emissions; leaching; lysimeters; nitrates; nitrogen fertilizers; nitrous oxide; runoff; soil; China
Abstract:
... This study provides a combined dataset on N loss pathways and fluxes from sloping cropland in the purple soil area, southwestern China. A lysimeter experiment was conducted to quantify nitrate leaching (May 2004–May 2010) and N₂O emission (May 2009–May 2010) losses. Nitrate leaching was the dominant N loss pathway and annual leaching fluxes ranged from 19.2 to 53.4 kg N ha⁻¹, with significant diff ...
DOI:
10.1016/j.envpol.2011.12.001
PubMed:
22243886

42. Ozone uptake by adult urban trees based on sap flow measurement

Author:
Wang, Hua; Zhou, Weiqi; Wang, Xiaoke; Gao, Fuyuan; Zheng, Hua; Tong, Lei; Ouyang, Zhiyun
Source:
Environmental pollution 2012 v.162 pp. 275-286
ISSN:
0269-7491
Subject:
Magnolia liliiflora; Robinia pseudoacacia; adults; canopy; interspecific variation; mature plants; ozone; risk; sap; sap flow; trees; vapor pressure
Abstract:
... The O₃ uptake in 17 adult trees of six urban species was evaluated by the sap flow-based approach under free atmospheric conditions. The results showed very large species differences in ground area scaled whole-tree ozone uptake ( [Formula: see text] ), with estimates ranging from 0.61 ± 0.07 nmol m⁻² s⁻¹ in Robinia pseudoacacia to 4.80 ± 1.04 nmol m⁻² s⁻¹ in Magnolia liliiflora. However, average ...
DOI:
10.1016/j.envpol.2011.11.026
PubMed:
22243875

43. Ozone weekend effect in Santiago, Chile

Author:
Seguel, Rodrigo J.; Morales S., Raúl G.E.; Leiva G., Manuel A.
Source:
Environmental pollution 2012 v.162 pp. 72-79
ISSN:
0269-7491
Subject:
control methods; industrialization; nitric oxide; nitrogen dioxide; ozone; pollution control; spring; summer; volatile organic compounds; Chile
Abstract:
... The study examined weekday–weekend differences in ozone, NOₓ (NO and NO₂) and VOC concentrations in Santiago, Chile, from 1999 to 2007. The results provide evidence for the occurrence of an atmospheric phenomenon that produces higher ozone concentrations during weekends despite lower concentrations of ozone precursors. This phenomenon is known as the weekend effect (WE). The overall ozone decrease ...
DOI:
10.1016/j.envpol.2011.10.019
PubMed:
22243849

44. PAH diagnostic ratios for the identification of pollution emission sources

Author:
Tobiszewski, Marek; Namieśnik, Jacek
Source:
Environmental pollution 2012 v.162 pp. 110-119
ISSN:
0269-7491
Subject:
air; biomass; burning; coal; combustion; leaves; molecular weight; mussels; petroleum; pollution; polycyclic aromatic hydrocarbons; sediments; soil
Abstract:
... Polycyclic aromatic hydrocarbon (PAH) diagnostic ratios have recently come into common use as a tool for identifying and assessing pollution emission sources. Some diagnostic ratios are based on parent PAHs, others on the proportions of alkyl-substituted to non-substituted molecules. The ratios are applicable to PAHs determined in different environmental media: air (gas + particle phase), water, s ...
DOI:
10.1016/j.envpol.2011.10.025
PubMed:
22243855

45. Parasitism can be a confounding factor in assessing the response of zebra mussels to water contamination

Author:
Minguez, Laëtitia; Buronfosse, Thierry; Beisel, Jean-Nicolas; Giambérini, Laure
Source:
Environmental pollution 2012 v.162 pp. 234-240
ISSN:
0269-7491
Subject:
Ciliophora; Dreissena polymorpha; aquatic organisms; bacteria; data collection; environmental factors; habitats; mussels; parasites; parasitism; wastewater treatment; water pollution; France
Abstract:
... Biological responses measured in aquatic organisms to monitor environmental pollution could be also affected by different biotic and abiotic factors. Among these environmental factors, parasitism has often been neglected even if infection by parasites is very frequent. In the present field investigation, the parasite infra-communities and zebra mussel biological responses were studied up- and down ...
DOI:
10.1016/j.envpol.2011.11.005
PubMed:
22243869

46. Pollutant plume delineation from tree core sampling using standardized ranks

Author:
Wahyudi, Agung; Bogaert, Patrick; Trapp, Stefan; Macháčková, Jiřina
Source:
Environmental pollution 2012 v.162 pp. 120-128
ISSN:
0269-7491
Subject:
data collection; groundwater; trees; Czech Republic
Abstract:
... There are currently contradicting results in the literature about the way chloroethene (CE) concentrations from tree core sampling correlate with those from groundwater measurements. This paper addresses this issue by focusing on groundwater and tree core datasets in CE contaminated site, Czech Republic. Preliminary analyses revealed strongly and positively skewed distributions for the tree core d ...
DOI:
10.1016/j.envpol.2011.11.010
PubMed:
22243856

47. Polybrominated diphenyl ethers and decabromodiphenylethane in sediments from twelve lakes in China

Author:
Wu, Fengchang; Guo, Jianyang; Chang, Hong; Liao, Haiqing; Zhao, Xiaoli; Mai, Bixian; Xing, Baoshan
Source:
Environmental pollution 2012 v.162 pp. 262-268
ISSN:
0269-7491
Subject:
industrialization; lakes; polybrominated diphenyl ethers; sediments; urbanization; China
Abstract:
... Sediment cores from 12 Chinese lakes were analyzed to investigate the historical inputs of polybrominated diphenyl ethers (PBDEs) and decabromodiphenylethane (DBDPE) during the past few decades. Concentrations of ΣPBDE₁ (sum of tri- to hepta-BDEs), ΣPBDE₂ (sum of nona- to deca-BDEs) and DBDPE in the surface sediments were 0.02–0.29 ng g⁻¹, 0.46–46.6 ng g⁻¹ and 1.02–3.64 ng g⁻¹, respectively. The t ...
DOI:
10.1016/j.envpol.2011.11.014
PubMed:
22243873

48. Potential influence of CO₂ release from a carbon capture storage site on release of trace metals from marine sediment

Author:
Payán, M. Cruz; Verbinnen, Bram; Galan, Berta; Coz, Alberto; Vandecasteele, Carlo; Viguri, Javier R.
Source:
Environmental pollution 2012 v.162 pp. 29-39
ISSN:
0269-7491
Subject:
carbon; carbon dioxide; leachates; leaching; models; neutralization; pH; prediction; risk; seawater; sediments; trace elements; Spain
Abstract:
... One of the main risks of CCS (Carbon Capture and Storage) is CO₂ leakage from a storage site. The influence of CO₂ leakage on trace metals leaching from contaminated marine sediment in a potential storage area (Northern Spain) is addressed using standardized leaching tests. The influence of the pH of the leaching solution on the leachates is evaluated using deionized water, natural seawater and ac ...
DOI:
10.1016/j.envpol.2011.10.015

49. Preliminary insights into δ¹⁵N and δ¹⁸O of nitrate in natural mosses: A new application of the denitrifier method

Author:
Liu, Xue-Yan; Koba, Keisuke; Takebayashi, Yu; Liu, Cong-Qiang; Fang, Yun-Ting; Yoh, Muneoki
Source:
Environmental pollution 2012 v.162 pp. 48-55
ISSN:
0269-7491
Subject:
freeze drying; habitats; isotopes; mosses and liverworts; nitrates; pollutants; soil; wet deposition
Abstract:
... Natural mosses have been employed as reactive and accumulative indicators of atmospheric pollutants. Using the denitrifier method, the concentration, δ¹⁵N and δ¹⁸O of moss nitrate (NO₃ ⁻) were measured to elucidate the sources of NO₃ ⁻ trapped in natural mosses. Oven drying at 55–70 °C, not lyophilization, was recommended to dry mosses for NO₃ ⁻ analyses. An investigation from urban to mountain si ...
DOI:
10.1016/j.envpol.2011.09.029

50. Quality of roof-harvested rainwater – Comparison of different roofing materials

Author:
Lee, Ju Young; Bak, Gippeum; Han, Mooyoung
Source:
Environmental pollution 2012 v.162 pp. 422-429
ISSN:
0269-7491
Subject:
Escherichia coli; aluminum; clay; copper; drinking water; guidelines; iron; lead; lichens; microbiological quality; mosses and liverworts; pH; rain; steel; temperature; tiles; ultraviolet radiation; water harvesting; water quality; zinc
Abstract:
... The objective of the study reported in this paper was to assess the quality of harvested rainwater on the basis of the roofing materials used and the presence of lichens/mosses on the roofing surface. Four pilot structures with different roofing materials (i.e., wooden shingle tiles, concrete tiles, clay tiles [Gi-Wa] and galvanized steel) were installed in a field. The galvanized steel was found ...
DOI:
10.1016/j.envpol.2011.12.005
PubMed:
22243894

51. Reducing total mercury and methylmercury accumulation in rice grains through water management and deliberate selection of rice cultivars

Author:
Peng, Xiaoyan; Liu, Fengjie; Wang, Wen-Xiong; Ye, Zhihong
Source:
Environmental pollution 2012 v.162 pp. 202-208
ISSN:
0269-7491
Subject:
cultivars; mercury; methylmercury compounds; paddy soils; rice; root growth; water management; China
Abstract:
... Rice consumption has been identified as a major route of methylmercury (MeHg) exposure in some areas of inland China. We investigated two potential mitigation methods (water management and deliberate selection of rice cultivars) to reduce the amount of total mercury (Hg) and MeHg within the grain. Rice grown aerobically had markedly reduced total Hg and MeHg concentrations as well as a much lower ...
DOI:
10.1016/j.envpol.2011.11.024
PubMed:
22243865

52. Regionalization of soil base cation weathering for evaluating stream water acidification in the Appalachian Mountains, USA

Author:
McDonnell, T.C.; Cosby, B.J.; Sullivan, T.J.
Source:
Environmental pollution 2012 v.162 pp. 338-344
ISSN:
0269-7491
Subject:
acidification; critical load; ecoregions; ecosystems; landscapes; national parks; soil; streams; watersheds; weathering; wilderness; Appalachian region; United States
Abstract:
... Estimation of base cation supply from mineral weathering (BCw) is useful for watershed research and management. Existing regional approaches for estimating BCw require generalized assumptions and availability of stream chemistry data. We developed an approach for estimating BCw using regionally specific empirical relationships. The dynamic model MAGIC was used to calibrate BCw in 92 watersheds dis ...
DOI:
10.1016/j.envpol.2011.11.025
PubMed:
22243883

53. Regional variation and possible sources of brominated contaminants in breast milk from Japan

Author:
Fujii, Yukiko; Ito, Yoshiko; Harada, Kouji H.; Hitomi, Toshiaki; Koizumi, Akio; Haraguchi, Koichi
Source:
Environmental pollution 2012 v.162 pp. 269-274
ISSN:
0269-7491
Subject:
breast milk; coastal water; flame retardants; metabolites; mothers; polybrominated diphenyl ethers; seafoods; Ryukyu Archipelago
Abstract:
... This study focuses on the regional trends and possible sources of brominated organic contaminants accumulated in breast milk from mothers in southeastern (Okinawa) and northwestern (Hokkaido) areas of Japan. For persistent brominated flame retardants, polybrominated diphenyl ethers (PBDEs; major components, BDE-47 and BDE-153) were distributed at higher levels in mothers from Okinawa (mean, 2.1 ng ...
DOI:
10.1016/j.envpol.2011.11.022
PubMed:
22243874

54. The contribution of microbial mats to the arsenic geochemistry of an ancient gold mine

Author:
Drewniak, Lukasz; Maryan, Natalia; Lewandowski, Wiktor; Kaczanowski, Szymon; Sklodowska, Aleksandra
Source:
Environmental pollution 2012 v.162 pp. 190-201
ISSN:
0269-7491
Subject:
arsenic; arsenites; bacteria; genes; geochemistry; gold; groundwater contamination; microbial communities; oxidation; sediments; Poland
Abstract:
... The ancient Zloty Stok (SW Poland) gold mine is such an environment, where different microbial communities, able to utilize inorganic arsenic species As(III) and As(V), are found. The purpose of the present study was to (i) estimate prokaryotic diversity in the microbial mats in bottom sediments of this gold mine, (ii) identify microorganisms that can metabolize arsenic, and (iii) estimate their p ...
DOI:
10.1016/j.envpol.2011.11.023
PubMed:
22243864

55. The effect of EDTA, NTA and picolinic acid on Th(IV) mobility in a ternary system with natural sand

Author:
Reinoso-Maset, Estela; Worsfold, Paul J.; Keith-Roach, Miranda J.
Source:
Environmental pollution 2012 v.162 pp. 399-405
ISSN:
0269-7491
Subject:
EDTA (chelating agent); binding sites; desorption; metals; models; nitrilotriacetic acid; picolinic acid; sand; silica; solubility
Abstract:
... Organic complexing agents, such as ethylenediaminetetraacetic acid (EDTA), nitrilotriacetic acid (NTA) and picolinic acid, have been widely used at nuclear sites and are therefore found as common co-contaminants in radioactive contaminated land. This study has explored the mechanisms by which these three complexing agents affect the sorption of Th(IV) to pure silica and a natural sand. EDTA, NTA a ...
DOI:
10.1016/j.envpol.2011.11.038
PubMed:
22243891

56. The functional response of a freshwater benthic community to cadmium pollution

Author:
Faupel, Michael; Ristau, Kai; Traunspurger, Walter
Source:
Environmental pollution 2012 v.162 pp. 104-109
ISSN:
0269-7491
Subject:
Protozoa; bacteria; biomass; cadmium; food webs; freshwater; freshwater ecosystems; functional response; pollution; secondary productivity; sediments; toxic substances; toxicity
Abstract:
... Theory predicts that in freshwater communities under chemical stress secondary production will decrease while the rate of biomass turnover (P/B) will increase. However, this concept has never been tested on organisms of smaller size (bacteria, protozoans, small metazoans), although they form the basis of the heterotrophic food web. The present work describes the results of a 7-month microcosm stud ...
DOI:
10.1016/j.envpol.2011.11.004
PubMed:
22243854

57. The impact of organochlorines cycling in the cryosphere on global distributions and fate – 2. Land ice and temporary snow cover

Author:
Hofmann, Lorenz; Stemmler, Irene; Lammel, Gerhard
Source:
Environmental pollution 2012 v.162 pp. 482-488
ISSN:
0269-7491
Subject:
DDT (pesticide); General Circulation Models; ice; lindane; snow; snowpack; volatilization; Antarctica; Arctic region; Greenland
Abstract:
... Global fate and transport of γ-HCH and DDT was studied using a global multicompartment chemistry-transport model, MPI-MCTM, with and without inclusion of land ice (in Antarctica and Greenland) or snow cover (dynamic). MPI-MCTM is based on coupled ocean and atmosphere general circulation models. After a decade of simulation 4.2% γ-HCH and 2.3% DDT are stored in land ice and snow. Neglection of land ...
DOI:
10.1016/j.envpol.2011.10.004
PubMed:
22054697

58. The impact of organochlorines cycling in the cryosphere on their global distribution and fate – 1. Sea ice

Author:
Guglielmo, Francesca; Stemmler, Irene; Lammel, Gerhard
Source:
Environmental pollution 2012 v.162 pp. 475-481
ISSN:
0269-7491
Subject:
DDT (pesticide); General Circulation Models; ice; latitude; lindane; melting
Abstract:
... Global fate and transport of γ-HCH and DDT was studied using a global multicompartment chemistry-transport model, MPI-MCTM, with and without a dynamic sea ice compartment. The MPI-MCTM is based on coupled ocean and atmosphere general circulation models. Sea ice hosts 7–9% of the burden of the surface ocean. Without cycling in sea ice the geographic distributions are shifted from land to sea. This ...
DOI:
10.1016/j.envpol.2011.09.039
PubMed:
22055446

59. Tissue-specific assimilation, depuration and toxicity of nickel in Mytilus edulis

Author:
Millward, Geoffrey E.; Kadam, Sandeep; Jha, Awadhesh N.
Source:
Environmental pollution 2012 v.162 pp. 406-412
ISSN:
0269-7491
Subject:
DNA; DNA damage; Mytilus edulis; cytotoxicity; digestive system; feces; gills; hemocytes; kidneys; muscles; mussels; nickel
Abstract:
... The tissue-specific accumulation and time-dependent depuration of radioactive ⁶³Ni by the byssus, gut, foot, gills, kidney, adductor muscle and faeces of Mytilus edulis has been investigated using a pulse-chase technique. The rate and extent of depuration of ⁶³Ni varied between tissues and, after 168 h, the concentration factors and assimilation efficiencies ranged from 1 to 35 L kg⁻¹ and 5%–13%, ...
DOI:
10.1016/j.envpol.2011.11.034
PubMed:
22243892

60. Toxicity assessment of simulated urban runoff containing polycyclic musks and cadmium in Carassius auratus using oxidative stress biomarkers

Author:
Chen, Fang; Gao, Jie; Zhou, Qixing
Source:
Environmental pollution 2012 v.162 pp. 91-97
ISSN:
0269-7491
Subject:
Carassius auratus; antioxidant activity; biomarkers; cadmium; catalase; exposure duration; liver; malondialdehyde; oxidative stress; peroxidase; risk assessment; superoxide dismutase; toxicity; urban runoff
Abstract:
... The objective of this study was to assess potential toxic effects of simulated urban runoff on Carassius auratus using oxidative stress biomarkers. The activity of antioxidant enzymes including superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT), and the content of malondialdehyde (MDA) in the liver of C. auratus were analyzed after a 7-, 14- and 21-day exposure to simulated urban runo ...
DOI:
10.1016/j.envpol.2011.10.016
PubMed:
22243852

61. Using a two site-reactive model for simulating one century changes of Zn and Pb concentration profiles in soils affected by metallurgical fallout

Author:
Kochem Mallmann, Fábio Joel; Rheinheimer dos Santos, Danilo; Cambier, Philippe; Labanowski, Jérôme; Lamy, Isabelle; Santanna, Maria Alice; Tessier, Daniel; van Oort, Folkert
Source:
Environmental pollution 2012 v.162 pp. 294-302
ISSN:
0269-7491
Subject:
EDTA (chelating agent); agricultural soils; arable soils; atmospheric deposition; chemical reactions; computer software; data collection; earthworms; grassland soils; lead; mathematical models; prediction; simulation models; soil solution; zinc
Abstract:
... Predicting the transfer of contaminants in soils is often hampered by lacking validation of mathematical models. Here, we applied Hydrus-2D software to three agricultural soils for simulating the 1900–2005 changes of zinc and lead concentration profiles derived from industrial atmospheric deposition, to validate the tested models with plausible assumptions on past metal inputs to reach the 2005 si ...
DOI:
10.1016/j.envpol.2011.11.039
PubMed:
22243877