Showing 706-720 of 1056
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Risk Assessment of Per- and Polyfluoroalkyl Substances (PFASs) Mixtures: A Relative Potency Factor Approach
Science
4 Aug 2020 | Environ. Toxicol. Chem.
The toxicity of PFAS mixtures was investigated to determine the combined health effects in humans.
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Preliminary study: State’s highest levels of ‘forever chemicals’ found in Cape Fear’s raw water supply
News
2 Aug 2020 | Port City Daily
The high level was attributed to PFAS chemicals coming from discharges at the Chemours Fayetteville Works plant.
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A profile analysis with suspect screening of per- and polyfluoroalkyl substances (PFASs) in firefighting foam impacted waters in Okinawa, Japan
Science
28 Jul 2020 | Water Res.
Drinking water treatment processes were found to form PFOS from their precursors.
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Serum levels of per- and polyfluoroalkyl substances alternatives and blood pressure by sex status: Isomers of C8 health project in China
Science
28 Jul 2020 | Chemosphere
Alternatives to legacy PFAS were found to increase the blood pressure and the odds ratio of hypertension.
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Maternal plasma concentrations of perfluoroalkyl and polyfluoroalkyl substances during pregnancy and anogenital distance in male infants
Science
28 Jul 2020 | Hum Reprod
Male infants were found to have physical abnormalities possibly associated with PFAS exposure.
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Serum Levels of Perfluoroalkyl Substances (PFAS) in Adolescents and Young Adults Exposed to Contaminated Drinking Water in the Veneto Region, Italy: A Cross-Sectional Study Based on a Health Surveillance Program
Science
28 Jul 2020 | Environ Health Perspect
Serum PFOA concentrations were high relative to concentrations in populations with background residential exposures only.
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Measurement of Novel, Drinking Water-Associated PFAS in Blood from Adults and Children in Wilmington, North Carolina
Science
28 Jul 2020 | Environ. Health Perspect.
Poorly understood PFAS were found to be released in the Cape Fear River and detected in blood samples from nearby communities.
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Perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) induce epigenetic alterations and promote human breast cell carcinogenesis in vitro
Science
28 Jul 2020 | Arch. Toxicol.
PFOS and PFOA associated with the development and progression of breast cancer.
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Toxic ‘forever’ chemicals pose risks to Rhode Islanders
News
27 Jul 2020 | ecoRI News
PFAS are in a significant portion of the state’s drinking water. More than 40 percent of the schools tested had levels above the new recommended standard of 20 ppt.
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With ‘trepidation,’ Michigan settles Wurtsmith PFAS cleanup dispute
News
26 Jul 2020 | MLive
A major bone of contention has been around the Air Force’s reluctance to comply with a low, 12 ppt state cleanup threshold for PFOS at the point where contaminated groundwater vents to surface water bodies.
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State investigating ‘very startling’ levels of PFAS chemicals on central Maine dairy farm
News
24 Jul 2020 | Portland Press Herald
State officials said the farm was sending a relatively small amount of milk to a processor that was blending it with milk from other farms. They are looking for sources of the contamination, potentially including sludge used as fertilizer or firefighting foam.
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New Michigan PFAS rules set to take effect Aug. 3, among nation’s strictest
News
23 Jul 2020 | The Detroit News
The rules set maximum contaminant levels at 6 ppt for PFNA; 8 ppt for PFOA; 400,000 ppt for PFHxA; 16 ppt for PFOS; 51 ppt for PFHxS; 420 ppt for PFBS and 370 ppt for HFPO-DA or Gen X.
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Study: Novel PFAS comprise 24% of those measured in blood of Wilmington, N.C. residents
News
23 Jul 2020 | NC State News
The fluoroethers – Nafion byproduct 2, PFO4DA and PFO5DoA – these are the first measurements of these chemicals in humans. Two other fluoroethers, PFO3OA and NVHOS, were infrequently detected. Nearly all samples had at least one fluoroether present, but GenX was not found in any samples.
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PFAS in German children: Human biomonitoring data highlight urgent need for group restriction
News
23 Jul 2020 | CHEM Trust
One-fifth of the participants had levels of the PFAS chemical PFOA in their blood that exceeded the HBM-I-value, which indicates an exposure at which harmful effects cannot be excluded.
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Cooking methods affect the intake of per- and polyfluoroalkyl substances (PFASs) from grass carp
Science
22 Jul 2020 | Ecotoxicol. Environ. Saf.
The effects of various cooking methods (boiling, steaming, grilling, and frying) on the levels of PFASs in fish muscle and the intake of PFASs were explored.