Environments, Journal Year: 2025, Volume and Issue: 12(4), P. 108 - 108
Published: April 2, 2025
Per- and polyfluoroalkyl substances (PFASs) are a class of manufactured organic chemicals that widely employed for their heat-, oil-, water-resistant properties. Studies have shown the bioaccumulation PFASs in living organisms related health effects sufficient classifying them as group toxicants worthy great concern further study. While travel through air soil, contamination water pathways proves to be most common route exposure. We analyzed from three different wastewater treatment plants (WWTPs) throughout Arizona show that, despite efforts, they persist contaminants sources. Using U.S. Environmental Protection Agency method 1633, seasonally obtained field samples were prepared analysis liquid chromatography–tandem mass spectrometry. A total 24 taken at stages process assess proficiency removal processes during remediation. Duplicate each Tucson’s WWTP Flagstaff’s before after chlorination, sites Yuma County, upstream effluent, downstream WWTP, chlorination. From Yuma, perfluorooctanesulfonic acid, perfluorooctanoic perfluorohexanesulfonic acid detected but levels below limits quantification. PFBS was Tucson up 4.52 ng/L 73.53 ng/L, respectively. The instrument level detection and, therefore, characterized non-detects.
Language: Английский