Showing 301-315 of 329
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Derivation of a chronic reference dose for perfluorohexane sulfonate (PFHxS) for reproductive toxicity in mice
Science
9 Sep 2019 | Regul. Toxicol. Pharmacol.
The total daily safe intake amount of PFHxS found to be 4.0 ng/kg in humans.
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Global Priority Perfluoroalkyl Substances in Surface Waters:Establishing Baseline Levels on Regional Basis
Science
28 Aug 2019 | DiVA
Baseline levels of PFAS were determined worldwide to understand fluctuating contamination.
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Plant Uptake of PFAAs Under a Maximum Bioavailability Scenario
Science
20 Aug 2019 | Environ. Toxicol. Chem.
PFAS accumulation in radish, carrots, and alfalfa found to be a potential source of human dietary exposure.
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Occurrence and human exposure assessment of perfluorinated substances in house dust from three European countries
Science
13 Aug 2019 | Science of The Total Environment
PFOA dust ingestion to dietary exposure reached values of 50% for toddlers.
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[Report] National Toxicology Program technical reports on the toxicity studies of perfluoroalkyl sulfonates (TOX-96) and perfluoroalkyl carboxylates (TOX-97)
Science
8 Aug 2019
NTP technical reports on the toxicity studies of perfluoroalkyl sulfonates (TOX-96) and perfluoroalkyl carboxylates (TOX-97) are now available.
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‘Markedly higher’ levels of 2 PFAS found in blood of NC residents, CDC reports
News
26 Jul 2019
The study conducted by the N.C. Department of Health and Human Services with the CDC found two PFAS (PFHxS and n-PFOS) “markedly higher” in the people drinking contaminated water in N.C. than the national estimates. GenX was not detected in the blood or urine of any of the participants, but nine PFAS were detected in blood.
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Electrodialytic per- and polyfluoroalkyl substances (PFASs) removal mechanism for contaminated soil
Science
23 Jul 2019 | Chemosphere
PFAS contaminated soil was remediated by passing an electric current through the soil.
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Alaska DEC rolls back PFAS chemicals to avoid remediation costs for polluters, violating state law
News
23 Jul 2019 | CoastAlaska
Gov. Mike Dunleavy’s administration directed DEC to change its regulations. It now screens for two PFAS compounds rather than five when determining whether water is safe to drink. By limiting its testing to two compounds, the DEC is no longer screening for PFHxS, one of the drivers for declaring a Yakutat drinking water source contaminated.
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Prenatal exposure to chlorinated polyfluoroalkyl ether sulfonic acids and perfluoroalkyl acids: Potential role of maternal determinants and associations with birth outcomes
Science
22 Jul 2019 | Journal of Hazardous Materials
PFOS and PFHxS linked to low birth weight, especially in first-time mothers.
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Fate of 6:2 fluorotelomer sulfonic acid in pumpkin (Cucurbita maxima L.) based on hydroponic culture: Uptake, translocation and biotransformation
Science
22 Jul 2019 | Environmental Pollution
PFOS alternative 6:2 FtS is more bioaccumulative than perfluoroalkyl acids in pumpkin roots, and is broken down into other short-chain PFAS within the plant.
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N.H. approves unprecedented limits for PFAS chemicals in drinking water
Policy
19 Jul 2019
New Hampshire adopted the country’s most sweeping limits for PFAS chemical contamination in drinking water. It makes New Hampshire the first state to require local water systems, landfills and wastewater plants to routinely test and treat for four chemicals classified as PFAS.
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N.H. approves unprecedented limits for PFAS chemicals in drinking water
News
19 Jul 2019 | NHPR
New Hampshire adopted the country’s most sweeping limits for PFAS chemical contamination in drinking water. It makes New Hampshire the first state to require local water systems, landfills and wastewater plants to routinely test and treat for four chemicals classified as PFAS.
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Michigan proposes strong, yet incomplete PFAS protections
News
1 Jul 2019 | NRDC Expert Blog
Michigan is proposing some of the most health-protective standards in the nation for several PFAS—yet could be missing out on the opportunity to protect its citizens in the long-term. Michigan has performed the most comprehensive PFAS monitoring in the nation, and the state has begun taking steps to protect it citizens from the health risk these dangerous ‘forever’ chemicals pose. Among the monitoring results, it was discovered that over 100 of their public water systems are contaminated with PFAS—affecting approximately 1.5 million of its citizens…
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Prenatal exposure to perfluoroalkyl substances, immune-related outcomes, and lung function in children from a Spanish birth cohort study
Science
28 Jun 2019 | Int J Hyg Environ Health
Exposure to PFOA linked to reduced lung function in young children.
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Michigan: Recommended PFAS health-based drinking water values
Policy
27 Jun 2019
Michigan Science Advisory Workgroup's recommended health-based drinking water values for 7 PFAS. This information will be used to develop regulatory drinking water standards for PFAS by April 2020.