Showing 106-120 of 1056
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Per- and polyfluoroalkyl substances in ambient fine particulate matter in the Pearl River Delta, China: Levels, distribution and health implications
Science
25 Jul 2023 | Env Poll
PFAS exposure via inhalation of particulate matter was found to be dominated by low levels of PFSAs and PFCAs, but inhalation exposure is still important due to its long-term and cumulative nature.
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6:2 Chlorinated Polyfluoroalkyl Ether Sulfonates Exert Stronger Thyroid Homeostasis Disruptive Effects in Newborns than Perfluorooctanesulfonate: Evidence Based on Bayesian Benchmark Dose Values from a Population Study
Science
25 Jul 2023 | Environ Sci Technol
Models suggested that 6:2 Cl-PFESA, an alternative to PFOS, has a stronger impact on newborns’ thyroids compared to PFOS and other legacy PFAS.
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Extending Nontargeted Discovery of Environmental Chemical Exposures during Pregnancy and Their Association with Pregnancy Complications-A Cross-Sectional Study
Science
19 Jul 2023 | Environ Health Perspect
Underused nontargeted analysis methods were used to detect linear PFOS, PFHxS, octadecanedioic acid, and deoxycholic acid in at least 97% of maternal samples, potentially leading to pregnancy complications.
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A Nested Case-Control Study of Serum Per- and Polyfluoroalkyl Substances and Testicular Germ Cell Tumors among U.S. Air Force Servicemen
Science
17 Jul 2023 | Environ Health Perspect
Service-related activities were associated with increased levels of PFAS concentrations and increased risk of testicular cancer with elevated PFOS concentrations among Air Force servicemen.
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‘Forever Chemical’ Lawsuits Could Ultimately Eclipse the Big Tobacco Settlement
News
13 Jul 2023 | TIME
So far, DuPont, Chemours, Corteva, and 3M have paid a total of nearly $11.5 billion in damages for PFAS contamination. But that number could grow considerably, even exceeding the more than $200 billion paid by Big Tobacco in the 1990s.
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An LC-MS/MS method for the quantitative determination of 57 per- and polyfluoroalkyl substances at ng/kg levels in different food matrices
Science
6 Jul 2023 | Food Addit Contam Part A Chem Anal Control Expo Risk Assess
An analytical method was optimized for quantifying the amount of PFAS in milk powder, milk-based infant formula, meat-based baby food puree, fish and fish oil, fresh egg, and soluble coffee, with limits of quantification low enough to comply with EU regulation.
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The Total Oxidizable Precursor (TOP) Assay as a Forensic Tool for Per-and Polyfluoroalkyl Substances (PFAS) Source Apportionment
Science
5 Jul 2023 | ACS ES&T Water
Researchers created a model for allocating the sources of PFAS contamination using a more comprehensive detection method.
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Occurrences and fates of per-and polyfluoralkyl substances in textile dyeing wastewater along full-scale treatment processes
Science
1 Jul 2023 | Water Res
PFAS were found in high concentrations in textile dyeing wastewater treatment plant influent, effluent, and sludge, with additional PFAA increasing by a factor of 2.3-4.1 after oxidation by the TOP assay.
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Factors affecting serum PFAS concentrations among US females with surgically and naturally induced menopause: data from NHANES 2003-2018
Science
27 Jun 2023 | Environ Sci Pollut Res Int
Supplementary hormone use, and specifically estrogen hormones, are associated with higher serum PFAS in postmenopausal women.
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Per-and Polyfluoroalkyl Substances (PFAS) in United States Tapwater: Comparison of Underserved Private-Well and Public-Supply Exposures and Associated Health Implications
Science
26 Jun 2023 | Environ. Int.
Models based on drinking water testing suggest that at least one PFAS is present in 45% of US drinking water. The authors recommend that monitoring should be improved by including more rural and private wells and by expanding target and non-target analysis methods.
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First Investigation of the Physiological Distribution of Legacy and Emerging Perfluoroalkyl Substances in Raw Bovine Milk According to the Component Fraction
Science
22 Jun 2023 | Foods
In milk from 23 cows with no known PFAS exposure, PFOS was found in higher concentrations in cream compared to raw and skim milk, and PFBA was the most common PFAS detected.
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Regulating PFAS at the Edge of Detection
News
21 Jun 2023 | American Bar Association
The U.S. Environmental Protection Agency published proposed regulations (88 FR 18638) for PFAS drinking water standards and seeks public comment.
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Levels of PFAS concentrations in the placenta and pregnancy complications
Science
20 Jun 2023 | Ecotoxicol Environ Saf
PFOA concentrations in the placenta appeared to be associated with adverse perinatal outcomes, consistent with findings for PFAS concentrations in blood.
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Domestic Dogs and Horses as Sentinels of Per- and Polyfluoroalkyl Substance Exposure and Associated Health Biomarkers in Gray's Creek North Carolina
Science
20 Jun 2023 | Environ Sci Technol
Many PFAS were detected in dogs and horses in areas with documented PFAS contamination, and as in humans, liver and kidney health in domestic animals may be sensitive to long-term PFAS exposures.
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Legacy and emerging per-and polyfluoroalkyl substances in polar regions
Science
17 Jun 2023 | Curr. Opin. Green Sustain. Chem.
Glacier melting and sea ice retreat can act as secondary sources of PFAS in polar regions.