Showing 316-330 of 1121
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Perfluoroalkyl Substances and Incident Natural Menopause in Midlife Women: The Mediating Role of Sex Hormones
Science
22 Mar 2022 | Am. J. Epidemiol.
Participants with higher PFAS concentrations had a shorter time to natural menopause, and the effect of PFAS may be partially explained by variations in hormone concentrations.
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Understanding Public Perceptions of Per- and Polyfluoroalkyl Substances: Infodemiology Study of Social Media
Science
21 Mar 2022 | J Med Internet Res
Government agencies can use social media research to understand the community sentiment on PFAS and then use social media to dispel misinformation, communicate scientific findings, and provide resources for relevant public health services.
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[Comment Period] Proposed Rulemaking: Safe Drinking Water PFAS MCL Rule
Policy
28 Feb 2022
Pennsylvania's Environmental Quality Board is now accepting public comment on proposed maximum contaminant levels for PFOA and PFOS.
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[Invited Perspective] Current Breast Milk PFAS Levels in the United States and Canada Indicate Need for Additional Monitoring and Actions to Reduce Maternal Exposures
Science
28 Feb 2022
Addressing the higher breast milk concentrations from maternal exposure to PFAS in drinking water will require identifying contaminated drinking water sources and establishing health-protective PFAS drinking water guidelines that consider both exposures and risks to breastfed infants.
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Comparative Toxicity of Aquatic PFAS Exposure in Three Species of Amphibians
Science
28 Feb 2022 | Environ Toxicol Chem
Chronic exposure to PFOS, PFOA, PFHxS, and 6:2 FTS can negatively affect amphibian body condition and development at low concentrations.
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Current Breast Milk PFAS Levels in the United States and Canada: After All This Time, Why Don't We Know More?
Science
28 Feb 2022 | Environ Health Perspect
The authors emphasize the need to study PFAS in breast milk and found that all average estimated and measured breast milk PFOA and PFOS concentrations exceeded drinking water screening values for children, sometimes by more than two orders of magnitude.
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Early Warnings by Liver Organoids on Short- and Long-Chain PFAS Toxicity
Science
28 Feb 2022 | Toxics
Short-chain PFAS were found to reduce the structural integrity and disrupt normal cell functions in a synthetic tissue model.
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Monitoring breast milk for PFAS
News
24 Feb 2022 | Science Daily
While there is over 20 years of biomonitoring data on PFAS in human serum and urine, scientists and physicians have a limited understanding of the level of these chemicals in breast milk.
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Utilizing Pine Needles to Temporally and Spatially Profile Per- and Polyfluoroalkyl Substances (PFAS)
Science
21 Feb 2022 | Environ Sci Technol
Non-targeted analysis of archived and new pine needle samples revealed over 70 PFAS, including both legacy PFAAs and their emerging replacements such as chlorinated derivatives, ultrashort chain PFAS, perfluoroalkyl ether acids, and more.
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Spatial distribution and load of per- and polyfluoroalkyl substances (PFAS) in background soils in Sweden
Science
21 Feb 2022 | Chemosphere
Sixteen out of 28 measured PFAS were detected in forest soils across Sweden with concentrations of PFOS explained by population density. The estimated total PFAS sink in soil throughout Sweden was on the order of several tons.
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Risk of Cancer in a Community Exposed to Per- and Poly-Fluoroalkyl Substances
Science
20 Feb 2022 | Environ Health Insights
Merrimack residents experienced a significantly higher risk of at least 4 types of cancer between 2005 and 2014 which may be linked to PFAS-contaminated drinking water.
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Insights into the effects of salinity on the sorption and desorption of legacy and emerging per-and polyfluoroalkyl substances (PFASs) on marine sediments
Science
16 Feb 2022 | Environ Pollut
The desorption rate of PFAS from marine sediment decreases with increased perfluorocarbon chain length of PFAS and increased sediment salinity.
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Concentrations of per- and polyfluoroalkyl substances (PFAS) in human placental tissues and associations with birth outcomes
Science
15 Feb 2022 | Chemosphere
All tested placenta samples contained detectable PFAS, including PFOS, PFOA, PFNA, and PFDA in >96% samples, and placental PFOS was associated with lower birth weight for in male infants and higher birth weight in female infants.
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Mahwah, NJ resident files class-action lawsuit over water contaminated by ‘forever chemicals’
News
10 Feb 2022 | NorthJersey.com
The suit seeks compensation for "all New Jersey citizens" who received the Jan. 13 letter from the township's Water Department advising residents of elevated PFOS levels in their drinking water.
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Release of perfluoroalkyl substances from AFFF-impacted concrete in a Firefighting Training Ground (FTG) under repeated rainfall simulations
Science
7 Feb 2022 | J. Hazard. Mater.
High concentrations of 5 PFAS were measured in concrete cores removed from firefighting training grounds, and simulated rainfall released approximately 1% of the total PFAS mass in the concrete surface layer, leading researchers to believe that concrete can be a secondary source of PFAS contamination.