Suspect and Nontarget Screening of Per- and Polyfluoroalkyl Substances in Wastewater from a Fluorochemical Manufacturing Park

• DOI: 10.1021/acs.est.8b03030
• Publication Date: 2018-09-13T15:54:10Z
• Authors: Yi Wang; Nanyang Yu; Xiaobin Zhu; Huiwei Guo; Jianguo Jiang; Xuebing Wang; Wei Shi; Jichun Wu; Hongxia Yu; Si Wei
• Keywords: Yangtze river

Although per- and polyfluoroalkyl substances (PFASs) have always been a key issue in the global environmental field, there are still lot of undiscovered PFASs environment due to new PFAS alternatives developed by manufacturers. Wastewater treatment plants (WWTPs), as one sources for PFASs, an important part process releasing into environment. In this study, suspect screening homologue analysis with quadrupole time-of-flight tandem mass spectrometry were used discover wastewater from WWTP near Yangtze River. Fifteen classes 90 identified, including 12 legacy (2 classes), 41 previously reported (7 37 (6 18 these also detected nearby Only 1 class was removed through processes (fold change < 1/6). Conversely, 4 increased > 6), which could be transformation products precursors. These results implied that most discovered not effectively WWTP. Chlorine-substituted perfluoroalkyl carboxylates (Cl-PFCAs) main component only downstream, meaning Cl-PFCAs downstream possibly originated