Showing 1951-1965 of 2684
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Occurrence and Distribution of Per- and Polyfluoroalkyl Substances in Tianjin, China: The Contribution of Emerging and Unknown Analogues
Science
10 Nov 2020 | Environ Sci Technol .
Field-derived sediment-water distribution coefficients of emerging PFAS are provided for the first time, confirming that cationic and zwitterionic PFASs tend to be strongly associated with sediments.
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Exposure to perfluorobutane sulfonate and perfluorooctanesulfonic acid disrupts the production of angiogenesis factors and stress responses in human placental syncytiotrophoblasts
Science
10 Nov 2020 | Reprod Toxicol
Exposure to PFOS or PFBS impacts several key pathways associated with preeclampsia.
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Associations between six common per- and polyfluoroalkyl substances and estrogens in neonates of China.
Science
10 Nov 2020 | J Hazard Mater
This study provided epidemiological data on the associations between common PFAS exposures resulting in hormone disruption in newborns.
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Exposure to Perfluorooctanoic Acid Induces Cognitive Deficits via Altering Gut Microbiota Composition, Impairing Intestinal Barrier Integrity, and Causing Inflammation in Gut and Brain
Science
10 Nov 2020 | J Agric Food Chem
PFOA exposure has potentially harmful immflamatory effects on the gut and brain.
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Per- and Polyfluoroalkyl Substances in Dust Collected from Residential Homes and Fire Stations in North America
Science
10 Nov 2020 | Environ Sci Technol
PFOS, PFOA, PFHxS, PFNA, and 6:2 diPAP were significantly higher in dust from fire stations than from homes, and 8:2 FTOH was significantly higher in homes than in fire stations.
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State launches study on PFAS and health effects in West Michigan
News
9 Nov 2020 | WWMT
The study will sample PFAS in drinking water and the health markers such as thyroid hormones and cholesterol among residents of Parchment and Cooper Township in Kalamazoo County and the Belmont and Rockford areas of Kent County.
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Severity of COVID-19 at elevated exposure to perfluorinated alkylates
Science
9 Nov 2020 | medRxiv
Elevated plasma-PFBA concentrations were associated with an increased risk of a more severe course of COVID-19
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'Forever chemicals' can have far-reaching consequences, need more regulation in Canada, scientists say
News
7 Nov 2020 | CBC Radio Canada
Unlike pesticides or pharmaceutical drugs, a significant portion of the more than 6,300 different types of PFAS on the market have little to no data on their use, toxicity and chemical structure and are not currently regulated or restricted in Canada. Also, a restriction or a ban of a specific substance does not automatically mean that its replacements do not pose similar or other harm.
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Trends and Patterns of Perfluoroalkyl Substances in Blood Plasma Samples of Bald Eagle Nestlings in Wisconsin and Minnesota, USA
Science
3 Nov 2020 | Environ. Toxicol. Chem.
PFAS concentrations in nestlings were found to depend on proximity to industrial areas and age.
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From Waste Collection Vehicles to Landfills: Indication of Per- and Polyfluoroalkyl Substance (PFAS) Transformation
Science
3 Nov 2020 | ES&T L
Leachate from waste collection vehicles was tested and found to contain PFAS precursors suggesting precursor transformation to PFAAs during the course of landfill disposal.
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Deterministic risk assessment of firefighting water additives to aquatic organisms
Science
3 Nov 2020 | Ecotoxicology
This study investigated the toxicity of six firefighting PFAS additives: Eco-Gel™, Thermo-Gel™, FireAde™, Fire-Brake™, Novacool Foam™, and F-500™ to aquatic biota.
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Targeted Minnesota site-specific criteria for PFOS
Policy
3 Nov 2020
The fish tissue maximum concertation is 0.37 ng/g and the maximum water concertation is 0.05 ng/L.
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Microbial Cleavage of C-F Bonds in Two C Per- and Polyfluorinated Compounds via Reductive Defluorination
Science
3 Nov 2020 | Environ Sci Technol
Microbes were found to be able to successfully degrade PFAS under common anaerobic conditions.
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Hexafluoropropylene oxide-dimer acid (HFPO-DA or GenX) alters maternal and fetal glucose and lipid metabolism and produces neonatal mortality, low birthweight, and hepatomegaly in the Sprague-Dawley rat
Science
3 Nov 2020 | Environ Int
HFPO-DA is a developmental toxicant in the rat and the spectrum of adverse effects is consistent with prior PFAS toxicity evaluations, such as PFOS and PFOA.
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A Simple and Rapid Method for Quantitative HPLC MS/MS Determination of Selected Perfluorocarboxylic Acids and Perfluorosulfonates in Human Serum
Science
3 Nov 2020 | Int J Anal Chem
This paper describes a very simple and accessible method of analysis and quantification of 13 PFAS in human blood.