Showing 736-750 of 961
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Legacy per- and polyfluoroalkyl substances (PFASs) and alternatives (short-chain analogues, F-53B, GenX and FC-98) in residential soils of China: Present implications of replacing legacy PFASs
Science
30 Dec 2019 | Environ. Int.
Short-chain PFAS and F-53B were found in higher concentrations than legacy long-chains in soils across China.
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U.S. EPA: Interim Recommendations for Addressing Groundwater Contaminated with PFOA and PFOS
Policy
26 Dec 2019
The U.S. EPA released its interim recommendations for cleanup guidance for CERCLA, RCRA, and other federal cleanup programs.
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Pollution Characteristics and Exposure Risk Assessment of Perfluoroalkyl Substances in Road Dust, Chengdu
Science
26 Dec 2019
PFAS was found in dust collected from local Chinese roadways putting children at risk of increased exposure.
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Longitudinal trends in perfluoroalkyl and polyfluoroalkyl substances among multiethnic midlife women from 1999 to 2011: The Study of Women′s Health Across the Nation
Science
26 Dec 2019 | Environ Int.
PFNA serum concentrations increased, and detection rates of PFDeA and PFUA doubled in women over a ten year period.
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Maternal serum levels of perfluoroalkyl substances in early pregnancy and offspring birth weight
Science
26 Dec 2019 | Pediatr Res.
Associations were found between prenatal exposure for five different PFASs and birth weight, with more pronounced associations in girls than in boys.
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Quantitative bias analysis of the association between subclinical thyroid disease and two perfluoroalkyl substances in a single study
Science
25 Dec 2019 | Environ. Res.
A physiologically based pharmacokinetic model was used to quantify bias in a reported PFAS-thyroid association.
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The short-chain perfluorinated compounds PFBS, PFHxS, PFBA and PFHxA, disrupt human mesenchymal stem cell self-renewal and adipogenic differentiation
Science
25 Dec 2019 | J Environ Sci (China).
PFBS, PFHxS, PFBA, and PFHxA were found to be cyto- and potentially developmentally toxic in human cells.
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Phytotoxicity induced by perfluorooctanoic acid and perfluorooctane sulfonate via metabolomics
Science
25 Dec 2019 | J Haz. Mat.
PFOS was found to disrupt lettuce's ability to photosynthesize.
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Behavioural effects and bioconcentration of per- and polyfluoroalkyl substances (PFASs) in zebrafish (Danio rerio) embryos
Science
25 Dec 2019 | Chemosphere
PFAS exposure significantly disrupted zebrafish development.
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Some Chemicals Used as Solvents and in Polymer Manufacture
Science
25 Dec 2019
A review of epidemiological evidence, animal bioassays, and mechanistic and other relevant data to determine the carcinogenic hazard to humans of environmental or occupational exposure to PFAS.
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Per- and polyfluoroalkyl substances (PFASs) modify lung surfactant function T and pro-inflammatory responses in human bronchial epithelial cells
Science
25 Dec 2019 | Tox. in Vitro
PFAS exposure associated with acute respiratory problems and airway infections.
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Profiles of Emerging and Legacy Per-/Polyfluoroalkyl Substances in Matched Serum and Semen Samples: New Implications for Human Semen Quality
Science
25 Dec 2019 | Environ. Health Perspect.
Exposure to 6:2 Cl-PFESA and other PFAS associated with poor semen quality.
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Researchers find high levels of PFAS chemicals in rainwater in United States
News
18 Dec 2019 | The Weather Channel
Most of the samples had PFAS concentrations of less than 1 ng/l, or 1 ppt, but several were about 4 ng/l. The highest total concentration was nearly 5.5 ng/l in a sample from Massachusetts. For drinking water, some states have proposed setting the level at which some type of official action is required at 2 nanograms per liter.
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[IATP Blog] Maine’s plan to address “forever chemicals” polluting farms, water and food
News
13 Dec 2019
Virtually all sludge has tested positive for PFOA and/or PFOS, generally two to three times the State’s screening level of 50 ppt, with some results as high as 20 times this level.
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How PFAS negotiations fell apart
News
13 Dec 2019 | E&E News
Before Democrats managed to secure provisions to address a class of toxic chemicals in an annual defense measure, negotiations fell apart at the hands of their own members... "The American Chemistry Council probably has something to do with it," Rep. Jared Huffman (D-Calif.) told reporters.