Showing 241-255 of 1082
-
EPA finally moves to label some ‘forever chemicals’ as hazardous
News
29 Aug 2022 | The Washington Post
The long-awaited move from the Environmental Protection Agency is meant to spark the cleanup of scores of sites defiled by industrial compounds and make the public more aware of their presence.
-
Polluters could pay billions in fines for PFAS cleanup under new Biden plan
News
29 Aug 2022 | The Guardian
The Biden administration on Friday announced a new proposal that could force polluters of two common PFAS compounds to pay billions of dollars for the toxic substances’ cleanup.
-
Association between fish oil supplements use and serum per- and polyfluoroalkyl substances (PFAS): Results from the National Health and Nutrition Examination Survey
Science
29 Aug 2022 | Environ Res
Fish oil supplement consumers did not have increased serum PFAS levels, specifically, but some inverse associations observed between the supplement use and PFOS levels in older adults and females need further study.
-
EPA Proposes Designating Certain PFAS Chemicals as Hazardous Substances Under Superfund to Protect People’s Health
Policy
26 Aug 2022
The proposal applies to PFOA and PFOS, including their salts and structural isomers, and is based on significant evidence that they may present a substantial danger to human health or welfare or the environment.
-
EPA to designate ‘forever chemicals’ as hazardous substances
News
26 Aug 2022 | AP News
The Environmental Protection Agency moved Friday to designate two “forever chemicals” used in cookware, carpets and firefighting foams as hazardous substances, a step that would clear the way for quicker cleanup of the toxic compounds, which have been linked to cancer and other health problems.
-
Comparative toxicokinetics and toxicity of PFOA and its replacement GenX in the early stages of zebrafish
Science
22 Aug 2022 | Chemosphere
At low levels, PFOA and GenX exhibited the same harmful acute effects on a human model species after accounting for differences in each chemical’s bioconcentration.
-
Food Grown on Fire Stations as a Potential Pathway for Firefighters’ Exposure to Per-and Poly-Fluoroalkyl Substances (PFAS)
Science
15 Aug 2022 | Environ. Int.
Firefighters may be most exposed to PFAS by consuming food grown on fire stations, followed by incidental ingestion and dermal absorption of PFAS in dust.
-
Association between per- and polyfluoroalkyl substances exposure and risk of diabetes: a systematic review and meta-analysis
Science
15 Aug 2022 | J Expo Sci Environ Epidemiol
Exposure to PFAS may increase diabetes risk among the general population, and PFOA may exert a non-monotonic dose-response effect on diabetes risk.
-
American Chemistry Council Uses Disinformation to Target PFAS Safeguards
News
8 Aug 2022 | The Equation
In its statement about the petition, the ACC claimed to support the development of drinking water standards for the PFAS chemicals PFOA PFOS, PFBS, and GenX. But it speciously charged that EPA was failing to ensure “the scientific integrity of its process.”
-
Influence of microplastics on the photodegradation of perfluorooctane sulfonamide (FOSA)
Science
8 Aug 2022 | Res. J. Environ. Sci.
Microplastics could act as PFAS concentrators, making the PFAS more resistant to degradation.
-
Coupling a pathway-oriented approach with tailor-made monitoring as key to well-performing regionalized modelling of PFAS emissions and river concentrations
Science
4 Aug 2022 | Sci Total Environ
A model was developed to assess PFAS emission pathways to rivers, and revealed the dominant PFOS contamination source was municipal wastewater treatment plants.
-
Outside the Safe Operating Space of a New Planetary Boundary for Per-and Polyfluoroalkyl Substances (PFAS)
Science
2 Aug 2022 | ES&T
PFAS have been detected at unsafe levels in rain globally, leading to the conclusions that the spread of PFOS, PFOA, PFHxS, and PFNA in the atmosphere has exceeded levels of concern for chemical pollution and that PFAS uses and emissions should be rapidly restricted.
-
Uptake of individual and mixed per- and polyfluoroalkyl substances (PFAS) by soybean and their effects on functional genes related to nitrification, denitrification, and nitrogen fixation
Science
29 Jul 2022 | Sci. Total Environ.
The synergistic effect of a PFAS mixture increased the uptake of individual PFAS in soybeans, which led to changes in genes involved in the nitrogen cycle.
-
Increasing Accumulation of Perfluorocarboxylate Contaminants Revealed in an Antarctic Firn Core (1958–2017)
Science
26 Jul 2022 | ES&T
PFCA and PFBA accumulation in snow increased, and although chemical fluxes of PFOA and PFNA peaked in 2009–2013, there is little evidence of a decline in PFAAs despite supposed recent global curtailments in their production.
-
Next Generation Per-and Poly-Fluoroalkyl Substances: Status and Trends, Aquatic Toxicity, and Risk Assessment
Science
19 Jul 2022 | EEH
Future uses of PFAS remain uncertain in the face of governmental regulations and production bans, but replacement PFAS will continue to emerge on the world market and in the environment, raising concerns about their general lack of information on mechanisms and toxic potencies.