Showing 361-375 of 1073
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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.
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Plasma concentrations of perfluoroalkyl acids and their determinants in youth and adults from Nunavik, Canada
Science
14 Oct 2022 | Chemosphere
Long-chain PFAAs levels were 4–7 fold higher in Nunavik Inuit adults compared to the Canadian population and were associated with hunting activity, omega-3 fatty acids, and drinking water from environmental sources.
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Per- and polyfluoroalkyl substances and psychosocial stressors have a joint effect on adverse pregnancy outcomes in the Atlanta African American Maternal-Child cohort
Science
14 Oct 2022 | Sci Total Environ
Psychosocial stress including depression, anxiety, stress, and gendered racial stress may amplify associations between an increase in PFAS and reduced birthweight.
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See where toxic PFAS have been used in Pennsylvania fracking wells
News
13 Oct 2022 | Environmental Health News
Toxic ‘forever chemicals’, also known as PFAS, have been used in at least eight oil and gas wells in Pennsylvania, but the exact location of those wells has never been publicly disclosed — until now.
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Occurrences of legacy and emerging per-and polyfluoroalkyl substances in human milk in China: Results of the third National Human Milk Survey (2017–2020)
Science
12 Oct 2022 | J. Hazard. Mater.
Potential hazard from PFAS exposure through breastmilk, especially from high PFOA exposure, was observed throughout China.
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Presumptive Contamination: A New Approach to PFAS Contamination Based on Likely Sources
Science
12 Oct 2022 | ES&T
A contamination model was used to create a map of presumptive PFAS contamination sites in the United States, identifying more than 57,000 sites including industrial facilities, wastewater treatment plants, current or former military sites, and airports.
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Use and release of per-and polyfluoroalkyl substances (PFASs) in consumer food packaging in US and Canada
Science
11 Oct 2022 | Chemosphere
Most food packaging does not contain intentionally added PFAS, indicating that PFAS are not necessary for food packaging, yet the thousands of tonnes of PFAS still used have the potential to contaminate the environment and waste streams.
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Swimming with PFAS in public and private pools
Science
11 Oct 2022 | Chemosphere
PFBA, PFHxA, PFHpA, PFOA, PFNA and PFBS were detected in every pool sample with most PFOA and PFOS levels above the new US EPA drinking water health advisory limits.
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Targeted analysis and total oxidizable precursor assay of several insecticides for PFAS
Science
10 Oct 2022 | JHM Letters
PFOS was detected in 6 out of 10 tested insecticides at concentrations up to 19,200,000 ppt, with 7 additional PFAS found via non-targeted techniques.
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Toxic ‘forever chemicals’ detected in commonly used insecticides in US, study finds
News
7 Oct 2022 | The Guardian
Toxic PFAS chemicals have been detected in seven out of 10 insecticides tested in the US, according to new research.
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An unexpected synergistic toxicity caused by competitive bioconcentration of perfluoroalkyl acid mixtures to Daphnia magna: Further promoted by elevated temperature
Science
7 Oct 2022 | Environ Pollut
High temperatures promote the bioconcentration of PFAA and resulted in the increased toxicity of PFAA mixtures in model species.
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An Integrated Approach for Determination of Total Per-and Polyfluoroalkyl Substances (PFAS)
Science
5 Oct 2022 | Environ. Sci. Technol.
This paper describes how to use methods like the total oxidizable precursor assay and suspect screening to more fully characterize PFAS present in soil and aqueous mixtures as such screenings can help inform the potential for PFAS exposure.
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Study links in utero ‘forever chemical’ exposure to low sperm count and mobility
News
5 Oct 2022 | The Guardian
A new peer-reviewed Danish study finds that a mother’s exposure to toxic PFAS ‘forever chemicals’ during early pregnancy can lead to lower sperm count and quality later in her child’s life.
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Maternal Exposure to Per- and Polyfluoroalkyl Substances (PFAS) and Male Reproductive Function in Young Adulthood: Combined Exposure to Seven PFAS
Science
5 Oct 2022 | Environ Health Perspect
Consistent inverse associations between exposure to maternal PFAS and semen quality were found in a sample of the Danish population.
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Preconception Exposure to Perfluoroalkyl and Polyfluoroalkyl Substances and Couple Fecundity: A Couple-Based Exploration
Science
4 Oct 2022 | Environ. Int.
Preconception exposure to 6:2 diPAP and PFHpA in women may have the potential to impair couples’ fertility.