Showing 4366-4380 of 4380
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Levels, accumulation patterns and retrospective trends of perfluoroalkyl acids (PFAAs) in terrestrial ecosystems over the last three decades
Science
3 Jan 2019 | Environ. Pollut.
PFAAs are still detectable in the environment and concentrations of other PFAAs as perfluorobutanoic acid appear to be increasing over the past 30 years.
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New Hampshire proposed MCLs and AGQS for a number of PFAS
Policy
2 Jan 2019
New Hampshire proposed Maximum Contaminant Levels (MCLs) and Ambient Groundwater Quality Standards (AGQS): PFOA (38 ppt), PFOS (70 ppt), PFOA & PFOS (combined: 70 ppt), PFHxS (85 ppt), PFNA (23 ppt).
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DuPont has spread its pollution around the world. Now it wants to filter your contaminated drinking water
News
11 Dec 2018 | The Intercept
DuPont opened a factory in Saudi Arabia that will produce reverse osmosis water filters. The filters use ultra-thin membranes to remove water impurities, including PFAS — chemicals made and used by DuPont that have caused widespread water contamination around the world... “DuPont has learned the art of making money coming and going,” said Telsey. “They profited off the environmental contamination and now can profit on cleaning it up. It’s quite a feat.”...
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Reconnaissance of Mixed Organic and Inorganic Chemicals in Private and Public Supply Tapwaters at Selected Residential and Workplace Sites in the United States
Science
21 Nov 2018 | Env. Sci. & Tech.
USGS scientists tested 25 tap water sources from across the U.S. detecting PFAS in 84%, although some at low levels.
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Potential health effects of emerging environmental contaminants perfluoroalkyl compounds
Science
7 Nov 2018 | Yeungnam Univ J Med
Researchers found links between PFAS levels to neurological disorders and hormone disruption in children and adults.
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Adverse Maternal, Fetal, and Postnatal Effects of Hexafluoropropylene Oxide Dimer Acid (GenX) from Oral Gestational Exposure in Sprague-Dawley Rats
Science
4 Nov 2018 | Environ. Health Perspect.
GenX exposure produced multiple effects that were similar to prior toxicity evaluations on PFAS inSprague-Dawley Rats.
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[Recording] U.S. Senate Subcommittee Hearing: The Federal Role in the Toxic PFAS Chemical Crisis
Events
26 Sep 2018
A recording and supporting information from a September 26, 2018 U.S. Senate Federal Spending Oversight Subcommittee Hearing on the Federal Role in the Toxic PFAS Chemical Crisis.
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[Recording] U.S. House Subcommittee Hearing: Perfluorinated Chemicals in the Environment
Events
6 Sep 2018
U.S. House Subcommittee on Environment held a hearing on Thursday, September 6, 2018 entitled “Perfluorinated Chemicals in the Environment: An Update on the Response to Contamination and Challenges Presented.”
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Micropollutants in drinking water from source to tap - Method development and application of a multiresidue screening method
Science
20 Feb 2018 | Sci. Total Environ.
A multi-compound screening method for the simultaneous measurement of a wide range of micropollutants, including PFAS, in drinking water resources was developed and applied to communities in Sweden.
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[Presentation] A Further Examination Of A Subset Of UCMR 3 PFAS Data Demonstrates Wider Occurrence
Science
8 Dec 2017
A presentation from Andy Eaton.
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Food packaging solutions in the post-per- and polyfluoroalkyl substances (PFAS) and microplastics era: A review of functions, materials, and bio-based alternatives
Science
30 Nov 1924 | Compr Rev Food Sci Food Saf
Sustainable food packaging solutions are essential to replace harmful PFAS and plastics, with promising advancements in bio-based materials and active packaging systems, though challenges remain in scalability and comprehensive environmental assessments.
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Inactivation of common airborne antigens by perfluoroalkyl chemicals modulates early life allergic asthma
Science
16 Jun 1921 | Proc Natl Acad Sci USA
PFAS was associated with respiratory symptoms in developing mice affecting pulmonary health.
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Airway exposure to perfluorooctanoate exacerbates airway hyperresponsiveness and downregulates glucocorticoid receptor expression in asthmatic mice.
Science
16 Mar 1921 | Transl Pediatr
Acute airway exposure to PFOA was found to decrease the effectiveness of asthma treatments.
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Reconstructing the Composition of Per- and Polyfluoroalkyl Substances in Contemporary Aqueous Film-Forming Foams
Science
1 Mar 1921 | Environ Sci Technol Lett
A combination of methods can accurately assign the total PFAS mass attributable to AFFF in an aqueous sample with differentiation of gross precursor classes and identification of major precursor species.
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Emerging Chlorinated Polyfluorinated Polyether Compounds Impacting the Waters of Southwestern New Jersey Identified by Use of Nontargeted Analysis
Science
16 Feb 1921 | Environ Sci Technol Lett
Non-targeted analysis was used to estimate the effectiveness of point-of-entry water treatment systems for the removal of the emerging species and reduced the abundance of PFAS by >90%.