Showing 691-705 of 1183
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Are resource recovery insects safe for feed and food? A screening approach for bioaccumulative trace organic contaminants
Science
1 Jun 2022 | Sci. Total Environ.
Four PFAS (PFBA, PFOA, PFBS, and PFOS) did not bioaccumulate in larvae, and non-target analysis revealed emerging PFAS present in larvae and almond hulls.
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Communicating Confidence of Per- and Polyfluoroalkyl Substance Identification via High-Resolution Mass Spectrometry
Science
30 May 2022 | Environ. Sci. Technol. Lett.
A confidence scale system was developed for the identification of PFAS through mass spectrometry to aid scientific research, especially considering the lack of analytical reference standards for PFAS.
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Silicone Wristbands Track Firefighters’ Exposure to Harmful Chemicals
News
25 May 2022 | Duke University
Recent research by scientists at Duke University could give doctors and public health officials a new tool for tracking firefighters’ exposures to PFAS, cancer-causing chemicals and determining where and when the risks might be greatest.
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U.S. government’s $650 billion buying power could move markets to PFAS-free products
Policy
24 May 2022
Curbing the needless use of the toxic "forever chemicals" known as PFAS could end their cycle of contamination, and the U.S. government has an extraordinary ability to move markets to PFAS-free products with its $650 billion annual purchasing power.
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San Diego files lawsuit over toxic PFAS chemicals in water
News
24 May 2022 | CBS8
San Diego is suing more than 20 companies including 3M, DuPont and Raytheon over decades-long contamination.
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Extraction and Matrix Cleanup Method for Analyzing Novel Per- and Polyfluoroalkyl Ether Acids and Other Per- and Polyfluoroalkyl Substances in Fruits and Vegetables
Science
24 May 2022 | J. Agric. Food Chem.
An extraction and cleanup method was developed to quantify 45 PFAS, including 13 PFEAs, 3 perfluoroalkane sulfonamides, and 6 fluorotelomer carboxylic acids in 10 types of fruits and vegetables.
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Systematic Evidence Map for Over One Hundred and Fifty Per- and Polyfluoroalkyl Substances (PFAS)
Science
24 May 2022 | Environ Health Perspect
More than 40,000 studies were identified to compile epidemiological evidence for 150 PFAS, and it was found that many PFAS lack sufficient data to determine health impacts.
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PFAS use in electronic products and exposure risks during handling and processing of e-waste: A review
Science
24 May 2022 | J Environ Manage
The wide use of PFAS in electronics presents a likely exposure source to workers at electronic-waste disposal sites given that PFAS have been detected in environmental and human samples near waste processing sites.
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Dermal uptake: An important pathway of human exposure to perfluoroalkyl substances?
Science
24 May 2022 | Environ Pollut
The available literature on human dermal absorption of PFAS is critically reviewed and compared to other halogenated contaminants like brominated flame retardants, and the authors highlight the need for dermal permeation and uptake studies for a wide range of PFAS and their precursors.
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More than 3,000 potentially harmful chemicals found in food packaging
News
19 May 2022 | The Guardian
International experts who analyzed more than 1,200 scientific studies warn chemicals are being consumed with unknown long-term impacts
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Invited Perspective: The Promise of Fit-for-Purpose Systematic Evidence Maps for Supporting Regulatory Health Assessment
Science
17 May 2022 | EHP
A primary goal of systematic evidence maps (SEMs) in environmental health is to gather large amounts of data to support deeper scientific analyses and decision-making that protects public health and the environment. SEMs can be extremely useful for assessing large chemical classes, such as PFAS. However, a comparison of two different SEM approaches highlights that many available PFAS studies might not be considered in the U.S. EPA health assessments.
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Pilot-Scale Continuous Foam Fractionation for the Removal of Per-and Polyfluoroalkyl Substances (PFAS) from Landfill Leachate
Science
17 May 2022 | ACS ES&T Water
Foam fractionation was found to remove PFAS from landfill leachate, with higher removal efficiencies for long-chain PFAS compared to short-chain PFAS.
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Ultra-Short-Chain PFASs in the Sources of German Drinking Water: Prevalent, Overlooked, Difficult to Remove, and Unregulated
Science
17 May 2022 | ES&T
Ultra-short-chain PFAS represent a major challenge in drinking water due to their high concentrations, greater mobility, and lack of remediation options, which shows that regulation through preventive measures is required to manage them.
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Fluorine Mass Balance Analysis and Per-and Polyfluoroalkyl Substances in the Atmosphere
Science
17 May 2022 | J. Hazard. Mater.
Ultra-short-chain PFAS were identified as the predominant components in outdoor air and organofluorine compounds were found to concentrate indoors in fine particles. A fluorine mass balance analysis revealed that up to 99% of PFAS in the atmosphere are unidentified.
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Environmental Exposure to 6:2 Polyfluoroalkyl Phosphate Diester and Impaired Testicular Function in Men
Science
17 May 2022 | Environ Sci Technol
Exposure to 6:2 diPAP may impair androgen synthesis and Leydig cell function in adult men, reducing the ability to regulate hormones.