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You searched for: Journal Environmental science & technology Remove constraint Journal: Environmental science & technology Publication Year 2018 Remove constraint Publication Year: 2018 Source 2018 v.52 no.12 Remove constraint Source: 2018 v.52 no.12
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41. Perfluoroalkyl Acids (PFAAs) in Serum from 2–4-Month-Old Infants: Influence of Maternal Serum Concentration, Gestational Age, Breast-Feeding, and Contaminated Drinking Water

Author:
Gyllenhammar, Irina; Benskin, Jonathan P.; Sandblom, Oskar; Berger, Urs; Ahrens, Lutz; Lignell, Sanna; Wiberg, Karin; Glynn, Anders
Source:
Environmental science & technology 2018 v.52 no.12 pp. 7101-7110
ISSN:
1520-5851
Subject:
blood serum; breast feeding; carbon; drinking water; environmental science; gestational age; indirect contact; infants; isomers; linear models; perfluorohexane sulfonic acid; perfluorononanoic acid; perfluorooctane sulfonic acid; perfluorooctanoic acid; regression analysis
Abstract:
... Little is known about factors influencing infant perfluorinated alkyl acid (PFAA) concentrations. Associations between serum PFAA concentrations in 2–4-month-old infants (n = 101) and determinants were investigated by multiple linear regression and general linear model analysis. In exclusively breast-fed infants, maternal serum PFAA concentrations 3 weeks after delivery explained 13% (perfluoround ...
DOI:
10.1021/acs.est.8b00770

42. Altered Microbiome Leads to Significant Phenotypic and Transcriptomic Differences in a Lipid Accumulating Chlorophyte

Author:
Richter, Lubna V.; Mansfeldt, Cresten B.; Kuan, Michael M.; Cesare, Alexandra E.; Menefee, Stephen T.; Richardson, Ruth E.; Ahner, Beth A.
Source:
Environmental science & technology 2018 v.52 no.12 pp. 6854-6863
ISSN:
1520-5851
Subject:
Chlorella; Rhodobacter; Ruegeria; biodiesel; bioreactors; carbon cycle; environmental science; feedstocks; gene expression; genes; genetic variation; microalgae; microbial communities; microbiome; nitrogen; oxidative stress; phenotype; photosynthesis; ribosomal RNA; transcriptomics; triacylglycerols
Abstract:
... Given the challenges facing the economically favorable production of products from microalgae, understanding factors that might impact productivity rates including growth rates and accumulation of desired products, for example, triacylglycerols (TAG) for biodiesel feedstock, remains critical. Although operational parameters such as media composition and reactor design can clearly effect growth rat ...
DOI:
10.1021/acs.est.7b06581

43. Lead Speciation and Association with Organic Matter in Various Particle-Size Fractions of Contaminated Soils

Author:
Landrot, Gautier; Khaokaew, Saengdao
Source:
Environmental science & technology 2018 v.52 no.12 pp. 6780-6788
ISSN:
1520-5851
Subject:
X-radiation; absorption; cerussite; goethite; lead; organic matter; particle size; polluted soils; remediation; soil sampling; spectroscopy; villages; Thailand
Abstract:
... Lead (Pb) stabilization in polluted soils treated by a Pb immobilization technique may be dependent on the speciation of Pb present in specific particle-size fractions of the soil. However, the scale-dependency of Pb speciation in contaminated soils is still not clearly understood. In this study, the natures and amounts of Pb chemical forms were determined in five Pb-polluted soil samples from Kli ...
DOI:
10.1021/acs.est.8b00004

44. Improving Photocatalytic Water Treatment through Nanocrystal Engineering: Mesoporous Nanosheet-Assembled 3D BiOCl Hierarchical Nanostructures That Induce Unprecedented Large Vacancies

Author:
Guo, Sheng-qi; Zhu, Xiao-he; Zhang, Hai-jun; Gu, Bing-chuan; Chen, Wei; Liu, Lu; Alvarez, Pedro J. J.
Source:
Environmental science & technology 2018 v.52 no.12 pp. 6872-6880
ISSN:
1520-5851
Subject:
bisphenol A; density functional theory; disinfection; electrons; energy; environmental science; mineralization; nanocrystals; nanosheets; nitrates; photocatalysis; photocatalysts; porous media; semiconductors; thermodynamics; water purification
Abstract:
... Vacancy control can significantly enhance the performance of photocatalytic semiconductors for water purification. However, little is known about the mechanisms and approaches that could generate stable large vacancies. Here, we report a new mechanism to induce vacancy formation on nanocrystals for enhanced photocatalytic activity: the introduction of mesopores. We synthesized two nanosheet-assemb ...
DOI:
10.1021/acs.est.8b00352

45. Polybrominated Diphenyl Ether (PBDE) Accumulation in Farmed Salmon Evaluated Using a Dynamic Sea-Cage Production Model

Author:
Ng, Carla A.; Ritscher, Amélie; Hungerbuehler, Konrad; von Goetz, Natalie
Source:
Environmental science & technology 2018 v.52 no.12 pp. 6965-6973
ISSN:
1520-5851
Subject:
Salmo salar; animal growth; animal-based foods; chemical concentration; dynamic models; farmed fish; feed composition; feed contamination; fish feeds; fish fillets; fish production; hepatocytes; humans; ingredients; metabolism; pollution; polybrominated diphenyl ethers; prediction; provenance; salmon; toxic substances
Abstract:
... Food is an important source of human exposure to hazardous chemicals. Chemical concentration in a food item depends on local environmental contamination, production conditions, and, for animal-derived foods, on feed. Here, we investigate these influences on the accumulation of individual polybrominated diphenyl ether congeners (PBDEs) in farmed Atlantic salmon (Salmo salar). We develop a dynamic m ...
DOI:
10.1021/acs.est.8b00146