Showing 1156-1170 of 1266
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[Webinar] Symposium: Science Gaps for Risk Assessment of PFAS in Food
Events
23 Jun 2020
ILSI North America will be hosting a webinar concerning the status and challenges of PFAS detection and analysis, exposure routes, and toxicity mechanisms in foods and ingredients.
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[Webinar] PFAS "the Forever Chemicals" Contamination in the Great Lakes Basin – A Strategic Discussion on Further Steps Around Binational Citizen Action
Events
22 Jun 2020
Bi-national work in the Great Lakes Basin has achieved benefits in the past and this interactive webinar will explore the opportunities to work bi-nationally to protect the Great Lakes from PFAS Contamination.
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Temporal and spatial analysis of per and polyfluoroalkyl substances in surface waters of Houston ship channel following a large-scale industrial fire incident
Science
16 Jun 2020 | Env. Poll.
This work documents the impact of a large-scale industrial fire on the environmental levels of PFAS, establishes a baseline concentration of PFAS in the affected area, and highlights the critical need for the development of PFAS water quality standards.
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Characterisation of human exposure pathways to perfluorinated compounds — Comparing exposure estimates with biomarkers of exposure
Science
16 Jun 2020 | Environ. Intern.
Significant positive associations between concentrations of PFAS in house dust and the corresponding serum concentrations underline the importance of the indoor environment as an exposure pathway for PFAS.
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Spatiotemporal variations, sources and health risk assessment of perfluoroalkyl substances in a temperate bay adjacent to metropolis, North China
Science
16 Jun 2020 | Env. Poll.
Terrigenous input, tide, and rainfall affected the spatiotemporal variation of PFAS levels.
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Review on perfluoroalkyl and polyfluoroalkyl substances (PFASs) in the Chinese atmospheric environment
Science
16 Jun 2020 | Sci. Total Environ.
This review documented twenty-eight studies on PFASs in Chinese outdoor air published to date. Methods of sampling, extraction, cleanup, and instrumental analysis were summarized for both ionic and neutral PFASs.
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Pharmacokinetic profile of Perfluorobutane Sulfonate and activation of hepatic nuclear receptor target genes in mice
Science
16 Jun 2020 | Toxicology
PFBS was found to have a short half-life in mice and induce an acute response to the chemical at a high dose.
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Levels of Perfluoroalkyl Acids (PFAAs) in Human Serum, Hair and Nails in Guangdong Province, China: Implications for Exploring the Ideal Bio-Indicator
Science
11 Jun 2020 | Arch. Environ. Contam. Toxicol.
Significant positive correlations were observed between nail and serum for PFOS, PFOA, and PFHxS, suggesting that human nails are a promising bio-indicator for PFAS risk assessment.
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Nontargeted mass-spectral detection of chloroperfluoropolyether carboxylates in New Jersey soils
Science
10 Jun 2020 | Science
The historical legacy-PFAS fingerprint for sources in New Jersey was developed.
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In Vivo Generation of PFOA, PFOS, and Other Compounds From Cationic and Zwitterionic Per- And Polyfluoroalkyl Substances in a Terrestrial Invertebrate (Lumbricus terrestris)
Science
10 Jun 2020 | ES&T
Earthworms were found to only partially breakdown PFAS indicating that not all fluorinated compounds can be broken down by enzymes.
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Biomonitoring of PFOA, PFOS and PNFNA in human milk from Czech Republic, time trends and estimation of infant’s daily intake
Science
10 Jun 2020 | Env. Res.
PFASs analyzed in human milk samples and compared with intake with provisional Tolerable Weekly Intake levels showed an increased risk for infants.
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Total oxidizable precursor assay in the determination of perfluoroalkyl acids in textiles collected from the United States
Science
10 Jun 2020 | Env. Poll.
PFCA precursors were found in textiles.
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Per- and poly-fluoroalkyl substances (PFAS) current status and research needs
Science
10 Jun 2020 | Environ. Tech. & Inn.
This paper is intended to capture the shared information, comments, and current thinking related to PFAS challenges and research needs as identified by the group of expert participants; the write up is not intended to be a complete dissertation on the science and work that has been carried out.
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Photochemical transformation of perfluoroalkyl acid precursors in water using engineered nanomaterials
Science
10 Jun 2020 | Water Res.
Nano-additives used in packaging and products were found to degrade PFAS precursors into PFOA and PFOS in association with sunlight.
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Per- and polyfluoroalkyl substances in blood plasma - Results of the German Environmental Survey for children and adolescents 2014-2017 (GerES V)
Science
10 Jun 2020 | Int J Hyg Environ Health
Children's exposure levels of PFOA and PFOS were found to still be significant even after the phase-out of these chemicals in commerce.