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The Complexity in the Study of PFASs, the Forever Chemicals

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Biochar sorption of perfluoroalkyl substances (PFASs) in aqueous film-forming foams-impacted groundwater: Effects of PFASs properties and groundwater chemistry

Chemosphere, 2022
The widespread use of per- and polyfluoroalkyl substances (PFASs)-related products such as aqueous film-forming foams (AFFF) has led to increasing contamination of groundwater systems. The concentration of PFASs in AFFF-impacted groundwater can be several orders of magnitude higher than the drinking water standard. There is a need for a sustainable and
Wenshan Guo, Pradeep Shukla, Phong Võ   +2 more
exaly   +5 more sources

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Recent progress in the detection of emerging contaminants PFASs

Journal of Hazardous Materials, 2021
As an emerging contaminant, per- and polyfluoroalkyl substances (PFASs) make up a large group of persistent anthropogenic chemicals, which are difficult to degrade in the environment. Notwithstanding their wide range of applications in consumer products and industrial processes, PFASs have been detected in the environment as well as in human body.
Heejeong Ryu, Baikun Li, Sylvain De Guise, Jeffrey McCutcheon, Yu Lei   +4 more
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Distribution of Per- and Polyfluoroalkyl Substances (PFASs) in a Waste-to-Energy Plant─Tracking PFASs in Internal Residual Streams

Environmental Science & Technology
Per- and polyfluoroalkyl substances (PFASs) constitute a diverse group of man-made chemicals characterized by their water- and oil-repellent properties and persistency. Given their widespread use in consumer products, PFASs will inevitably be present in waste streams sent to Waste-to-Energy (WtE) plants. We have previously observed a subset of PFASs in
Eva Weidemann, Stina Jansson, Sofie Bjorklund   +2 more
exaly   +4 more sources

PFASs in the General Population

2015
Perfluoroalkyl and polyfluoroalkyl substances (PFASs) have been manufactured since the 1950s for use as surface protectants for textiles and leather treatment, as protection additives in food packaging and paper products, and in firefighting foams. Some PFASs are persistent in the environment and in people, and can be transported to remote regions. The
Kayoko Kato, Xiaoyun Ye, Antonia M. Calafat   +2 more
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Legacy and emerging per- and polyfluoroalkyl substances (PFASs) in multi-media around a landfill in China: Implications for the usage of PFASs alternatives

Science of The Total Environment, 2021
To date, per- and polyfluoroalkyl substances (PFASs) in environmental media surrounding landfills have not attracted much attention. In this study, six legacy PFASs, six short-chain analogues and five emerging alternatives were investigated in groundwater, surface water and sediment samples taken in the vicinity of a valley-type landfill, which had ...
Chang Xu, Zhaoyang Liu, Xin Song, Xiaoyan Ding, Da Ding   +4 more
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The perfluoroalkyl substances (PFASs) contamination of fruits and vegetables

Food Additives & Contaminants: Part A, 2018
Fruit and vegetables play a major role in human nutrition due to richness of nutrients, dietary fibre, and phytochemicals. As dietary intake is identified as one of the dominant exposure pathways to perfluoroalkyl substances (PFASs), a cross-sectional study involving determination of their levels in food of plant origin has been conducted.
Katarzyna Sznajder-Katarzyńska, Magdalena Surma, Ewa Cieślik, Wiesław Wiczkowski   +3 more
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Photocatalytic low-temperature defluorination of PFASs

Nature
Polyfluoroalkyl and perfluoroalkyl substances (PFASs) are found in many everyday consumer products, often because of their high thermal and chemical stabilities, as well as their hydrophobic and oleophobic properties1. However, the inert carbon-fluorine (C-F) bonds that give PFASs their properties also provide resistance to decomposition through ...
Hao Zhang, Jin-Xiang Chen, Jian-Ping Qu, Yan-Biao Kang   +3 more
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Electrophotocatalysis for Reductive Defluorination of PTFE and PFASs

Angewandte Chemie
AbstractPolytetrafluoroethylene (PTFE) is among the most inert poly‐ and perfluoroalkyl substances (PFASs) and its degradation under mild conditions remains underdeveloped. We report a supercapacitor‐assisted electrophotocatalysis, incorporating the strength of both electrochemical and photochemical energy, for the efficient defluorination of PTFE and ...
Jia-Le, Fu, Yu, Liu, Yi-Ming, Chen, Hao, Zhang, Jian-Ping, Qu, Yan-Biao, Kang   +5 more
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