Showing 496-510 of 1631
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Issuance Of Notification And Response Levels For Perfluorohexane Sulfonic Acid (PFHxS) In Drinking Water, Updated Monitoring Orders
Policy
2 Nov 2022
The Deputy Director of the State Water Board’s Division of Drinking Water, California issued a notification level of 3 parts per trillion (ppt) and a response level of 20 ppt for PFHxS.
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Developing an Exposure Burden Score for Chemical Mixtures Using Item Response Theory, with Applications to PFAS Mixtures
Science
2 Nov 2022 | Environ Health Perspect
A novel exposure burden score method for chemical mixtures was developed and applied to estimate the exposure burden of PFAS mixtures and resulted in stronger estimated associations with cardio-metabolic outcomes in the general U.S. population compared to summed PFAS concentrations.
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PFAS left dangerous blood compounds in nearly all US study participants
News
31 Oct 2022 | The Guardian
Nearly all participants in a new study looking at exposure to PFAS ‘forever chemicals’ in the US state of North Carolina have multiple dangerous compounds in their blood, and most at levels that researchers say requires medical screening.
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What do we know about the production and release of persistent organic pollutants in the global environment?
Science
26 Oct 2022 | Environ. Sci. Adv.
The U.S. has the highest cumulative environmental releases of PFOS, whereas Europe has the highest cumulative environmental releases of PFOA.
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Maternal Offloading of Per-and Polyfluoroalkyl Substances to Eggs by Lake Michigan Salmonids
Science
25 Oct 2022 | ES&T
Salmon can bioaccumulate and offload PFAS to embryos, which has implications for embryo health, egg predation by wildlife, and ultimately human exposure.
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PFAS and Precursor Bioaccumulation in Freshwater Recreational Fish: Implications for Fish Advisories
Science
24 Oct 2022 | Environ Sci Technol
PFAS precursors were found to have higher bioaccumulation potentials than PFAS commonly considered in regulatory efforts, suggesting that more comprehensive fish advisories are needed to prevent human exposures.
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Exposure to environmental toxins may be root of rise in neurological disorders
News
23 Oct 2022 | The Guardian
Doctors warn exposure to omnipresent yet poorly understood chemicals such as microplastics and PFAS could play a role in dementia.
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High levels of ‘forever chemicals’ likely making alligators sick in Cape Fear River
News
20 Oct 2022 | The Guardian
North Carolina reptiles showed extremely high levels of PFAS compounds and markers of immune disease in their blood.
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Blood Concentrations of Per-and Polyfluoroalkyl Substances are Associated with Autoimmune-like Effects in American Alligators from Wilmington, North Carolina
Science
20 Oct 2022 | Frontiers in Toxicology
PFAS was found to broadly alter immune activities resulting in autoimmune-like diseases in American alligators.
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Lack of ‘forever chemicals’ testing could be leaving most victims in the dark
News
19 Oct 2022 | The Hill
Sandy Wynn-Stelt had thought her Michigan home was across the street from a Christmas tree farm, but she said in a lawsuit settled earlier this year that it was actually a toxic dump that contaminated her water.
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DuPont, Chemours, 3M Sued by N.C. Attorney General Over PFAS
News
19 Oct 2022 | Bloomberg Law
DuPont de Nemours Inc., the Chemours Co., and 3M Co. are among more than a dozen companies that produced firefighting foam with “forever chemicals” while knowing their connection to human health harms, according to complaints from the North Carolina attorney general.
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Global PFAS Guidance Fuels Debate as EPA Tap Water Limits Loom
News
19 Oct 2022 | Bloomberg Law
The World Health Organization’s views on the risks of PFAS are fanning disputes about a draft EPA rule the White House is reviewing to set enforceable limits on two “forever chemicals” in drinking water.
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[Perspective] EPA Takes Action Against Harmful "Forever Chemicals" in the US Water Supply
Science
19 Oct 2022 | JAMA
This Medical News article discusses new EPA advisories for PFAS as well as new National Academies guidance on expanded testing for exposure.
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PFAS pollute 83% of U.S. waterways
News
18 Oct 2022 | E&E News
The overwhelming majority of U.S. waterways are likely polluted with “forever chemicals,” according to a grim new analysis that comes as the country marks a half-century of its landmark water protection law.
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Analysis of Per- and Poly(fluoroalkyl) Substances (PFASs) in Highly Consumed Seafood Products from U.S. Markets
Science
17 Oct 2022 | J Agric Food Chem
Bottom-feeding organisms tend to have the highest PFAS concentrations, followed by lean fish, fatty fish, and aquaculture with PFUdA and PFDoA being the most frequently detected chemicals.