Showing 1621-1635 of 1718
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EPA failed to monitor GenX chemical for eight years
News
28 May 2020 | The Fayetteville Observer
The EPA’s regional office wasn’t told it was supposed to inspect the Chemours Fayetteville Works plant until the StarNews in Wilmington reported there was GenX in the Cape Fear River.
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PFAS pollution from Chemours plant distributed by air
News
28 May 2020 | C&EN
Study finds PFOA and GenX-related chemical are widespread downwind of West Virginia facility.
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Removal of per- and polyfluoroalkyl substances (PFASs) in a full-scale drinking water treatment plant long-term performance of granular activated carbon (GAC) and influence of flow-rate
Science
27 May 2020 | Water Res.
The results and methods presented in this study give drinking water providers valuable tools for the operation of a full-scale treatment train for the removal of PFAS in contaminated raw water.
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Perfluoroalkyl Substances Exposure and Hearing Impairment in US Adults
Science
27 May 2020 | Environ. Res.
PFNA and PFDA were associated with high-frequency hearing impairment, while PFOS and PFOA were not.
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Screening new persistent and bioaccumulative organics in China's inventory of industrial chemicals
Science
27 May 2020 | Environ. Sci. Technol.
Sixty-nine organofluorine compounds with three or more perfluorinated moieties, were found unique to the chemical Inventory of Existing Chemical Substances of China lists.
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Legacy and emerging per- and polyfluoroalkyl substances (PFASs) in the coastal environment of Korea: Occurrence, spatial distribution, and bioaccumulation potential
Science
27 May 2020 | Chemosphere
Seawater was dominated by short-chained PFASs as a prompt reflection of regulation, while the sediment and bivalves were dominated by long-chained PFASs.
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Understanding and Managing the Potential By‐Products of PFAS Destruction
Science
26 May 2020 | Ground. Mon. & Rem.
Based on the available technologies relevant to PFAS destruction, complex aqueous solutions containing high concentrations of PFAS have the potential to generate either known short-chain PFAAs or other secondary effects on water quality.
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Per- and polyfluoroalkyl substances (PFASs) in blood of captive Siberian tigers in China: Occurrence and association with biochemical parameters
Science
19 May 2020 | Env Poll
Ten PFASs were detected in the blood of captive Siberian tigers, including PFOS alternative 6:2 Cl-PFESA, primarily from the consumption of PFAS-contaminated meat.
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Perfluoroalkyl Substance Exposure Was Negatively Associated With Cortisone Levels in Pregnancy
Science
19 May 2020 | J Endocr Soc
Early pregnancy concentrations of maternal PFAS were inversely associated with late pregnancy cortisone levels, indicating potential endocrine disruption in highly exposed mothers.
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Investigation of Levels of Perfluoroalkyl Substances in Surface Water, Sediment and Fish Tissue in New Jersey, USA
Science
19 May 2020 | Sci of Total Env
PFOS, PFDA, PFUnA, and PFDoA were the predominant PFAS detected in fish tissue with the highest levels downstream of a military facility.
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Association of perfluoroalkyl substances with gestational hypertension and preeclampsia in the MIREC study.
Science
19 May 2020 | Environ Int
Higher levels of PFHxS were associated with the development of preeclampsia during pregnancy.
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Challenges in the analytical determination of ultra-short-chain perfluoroalkyl acids and implications for environmental and human health
Science
19 May 2020 | Anal Bioanal Chem
The present review gives an overview of the currently used analytical methods and summarizes the findings regarding potential analytical challenges regarding ultra-short-chain PFAS.
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Ozone layer: Concern grows over threat from replacement chemicals
News
14 May 2020 | BBC News
Canadian researchers, studying ice samples from the Arctic dating back to the 1990s, have found "dramatically" increasing levels of ozone replacements called short chain perfluoroalkyl carboxylic acids (scPFCAs).
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Recent advances in the analysis of per-and polyfluoroalkyl substances (PFAS)—A review
Science
12 May 2020 | ET&I
The existing analytical techniques are summarised (since 1985 till now) for the identification and quantification of PFAS.
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Long-term investigation on the removal of perfluoroalkyl substances in a full-scale drinking water treatment plant in the Veneto Region, Italy
Science
12 May 2020 | Sci. of the Total Envir.
A granular activated carbon system was studied for five years in Italy to determine various PFAS breakthrough behaviors.