Showing 676-690 of 1187
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Contamination Characteristics and Potential Ecological Risks of Typical Perfluoroalkyl Substances in the Water and Sediment of Coastal Tourism Resorts in Shandong Province
Science
5 Jan 2021 | Huan Jing Ke Xue .
Discharge of municipal industrial wastewater and domestic sewage is the main source of contamination around tourist-heavy areas.
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An evaluation of health-based federal and state PFOA drinking water guidelines in the United States
Science
5 Jan 2021 | Sci Total Environ
More rigorous efforts are warranted to establish consistent health-based drinking water guidelines for PFOA, given that drinking water is a primary source of human exposure to PFOA in the United States.
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Development of Per and Polyfluoroalkyl Substances (PFAS) Ecological Risk Based Screening Levels (RBSLs)
Science
5 Jan 2021 | Environ Toxicol Chem
PFNA, PFOS, PFOA, PFHxA, PFBS, and PFBA were evaluated and a risk-based screening level was developed for each.
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Toxic effects and mechanisms of PFOA and its substitute GenX on the photosynthesis of Chlorella pyrenoidosa
Science
5 Jan 2021 | Sci Total Environ
Prolonged exposure to GenX lead to decreased ability to photosynthesize.
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Prenatal exposure to per- and polyfluoroalkyl substances in association with autism spectrum disorder in the MARBLES study
Science
5 Jan 2021 | Environ Int
From this high-risk cohort, we observed an increased risk of autism spectrum disorder in children exposed to PFOA and PFNA.
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Spatial Trends of Anionic, Zwitterionic, and Cationic PFASs at an AFFF-Impacted Site
Science
29 Dec 2020 | Environ Sci Technol
Precursor compounds may create long-term sources of perfluoroalkyl acids, although many pathways remain unknown; precursor analysis is critical for PFAS fate and transport understanding.
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Profiling of emerging and legacy per-/polyfluoroalkyl substances in serum among pregnant women in China
Science
29 Dec 2020 | Env. Poll.
6:2Cl-PFESA to PFOS ratio in serum shows an apparent geographic difference in China.
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Understanding PFAAs exposure in a generalist seabird species breeding in the vicinity of a fluorochemical plant: influence of maternal transfer and diet
Science
29 Dec 2020 | Env. Poll.
PFOS, PFOA, PFDA and PFNA were detected in a seabird community with PFOS concentrations measured in some chicks surpassing the toxicity reference value calculated for top avian predators.
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Parallel study on removal efficiency of pharmaceuticals and PFASs in advanced water treatment processes: Ozonation, GAC adsorption, and RO processes
Science
29 Dec 2020 | Env. Eng. Res.
Chemically persistent PFASs were hardly removed by the ozonation process but were effectively removed by physical treatments such as GAC adsorption and RO membrane processes.
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The association between perfluoroalkyl substances and lipid profile in exposed pregnant women in the Veneto region, Italy.
Science
29 Dec 2020 | Ecotoxicol Environ Saf
Depending on the stage of pregnancy PFAS and cholesterol can have an inverse or associated relationship.
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Nonstick pans often don't note they use PFAS
News
28 Dec 2020 | NPR
A Michigan-based environmental group has found many nonstick pans are coated with a chemical from the PFAS family
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Deposition of PFAS 'forever chemicals' on Mt. Everest.
Science
28 Dec 2020 | Sci Total Environ
PFOS, PFOA, and PFHxA were found in Mt. Everest snow and the below-glacier watershed.
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The new generation PFAS C6O4 does not produce adverse effects on thyroid cells in vitro
Science
22 Dec 2020 | J Endocrinol Invest
PFAS C6O4 was found to not significantly impair thyroid cells in a non-systemic study.
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Assessing the human health risks of per- and polyfluoroalkyl substances: A need for greater focus on their interactions as mixtures
Science
22 Dec 2020 | J Haz. Mat.
The combined effects or potential interactions of PFAS mixtures should be considered and integrated into toxicity assessment to obtain a realistic and more refined human health risk assessment.
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Perfluoroalkyl Substances in the Urine and Hair of Preschool Children, Airborne Particles in Kindergartens, and Drinking Water in Hong Kong
Science
15 Dec 2020 | Env Poll
PFOA was the major PFAS detected in hair, urine, and drinking water samples, while PFOA, PFDA, and PFHpA were dominant in airborne particles.