Discovery of Perfluoroalkyl Sulfonyl Quaternary Ammonium Substances in the Environment and Their Environmental Behaviors

Water Research, Год журнала: 2024, Номер 263, С. 122189 - 122189

Опубликована: Июль 30, 2024

Язык: Английский

Legacy and emerging per- and polyfluoroalkyl substances in tissue and toilet paper from China

Journal of Hazardous Materials Letters, Год журнала: 2024, Номер 5, С. 100109 - 100109

Опубликована: Апрель 3, 2024

Per- and polyfluoroalkyl substances (PFASs) have been found in toilet paper Europe, the United States, Africa; however, their presence Chinese household has not investigated. In this study, 21 legacy 30 emerging PFASs were analyzed tissue from China, including 48 samples of different origins materials. Median concentrations chlorinated polyfluorinated ether sulfonates (Cl-PFESAs), hexafluoropropylene oxide homologs (HFPOs), p-perfluorous nonenoxybenzenesulfonate (OBS) 0.32, 0.19, 0.10 ng/g dry weight (dw), respectively. The detection frequencies (DFs) Cl-PFESAs OBS both greater than 96%, followed by trimer acid (HFPO-TrA, DF: 85%). Notably, level HFPO-TrA one sample was as high 540 dw, indicating a potential environmental risk to humans. addition, significantly higher that (p < 0.05). However, no significant differences observed materials origins. This suggests PFASs, particularly are widely detected products across is source landfill contamination human exposure.

Язык: Английский

Perfluoroalkyl and polyfluoroalkyl substances (PFAS) and nutrients from two constructed wetlands in a city of southeastern China

Heliyon, Год журнала: 2024, Номер unknown, С. e37551 - e37551

Опубликована: Сен. 1, 2024

Язык: Английский