PMID- 23933955 OWN - NLM STAT- MEDLINE DCOM- 20150622 LR - 20221207 IS - 1614-7499 (Electronic) IS - 0944-1344 (Linking) VI - 22 IP - 3 DP - 2015 Feb TI - Occurrence and fate of perfluorinated acids in two wastewater treatment plants in Shanghai, China. PG - 1804-11 LID - 10.1007/s11356-013-2044-8 [doi] AB - Perfluorinated acids (PFAs) have drawn much attention due to their environmental persistence, ubiquitous existence, and bioaccumulation potential. The discharge of wastewater effluent from municipal wastewater treatment plants (WWTPs) is a significant source of PFAs to the environment. In this study, wastewater and sludge samples were collected from two WWTPs in Shanghai, China, to investigate the contamination level and fate of PFAs in different stages of processing. The total concentrations of PFAs ( summation operatorPFAs) in influent from plants A and B were 2,452 and 292 ng L(-1), respectively. Perfluoropentanoic acid (1,520 +/- 80 ng L(-1) in plant A and 89.2 +/- 12.1 ng L(-1) in plant B) was the predominant PFA in influent waters, followed by perfluorooctanoic acid. The concentration of summation operatorPFAs ranged from 75.0 to 126.0 ng g(-1) dry weight in sludge samples from plant B, with perfluorooctanesulfonic acid as the predominant contaminant. The concentrations and fate of PFAs in different WWTPs vary. The summation operatorPFAs entering plant A decreased significantly in the final effluent of activated sludge process, while that in plant B increased significantly in the final effluent of sequencing batch reactor system. The concentration changes could be due to the sorption onto sludge, or the degradation of PFAs precursors. FAU - Zhang, Chaojie AU - Zhang C AD - State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China, myrazh@tongji.edu.cn. FAU - Yan, Hong AU - Yan H FAU - Li, Fei AU - Li F FAU - Zhou, Qi AU - Zhou Q LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130810 PL - Germany TA - Environ Sci Pollut Res Int JT - Environmental science and pollution research international JID - 9441769 RN - 0 (Alkanesulfonic Acids) RN - 0 (Fluorocarbons) RN - 0 (Sewage) RN - 0 (Waste Water) RN - 0 (Water Pollutants, Chemical) SB - IM MH - Alkanesulfonic Acids/*analysis MH - China MH - Cities MH - Environmental Monitoring MH - Fluorocarbons/*analysis MH - Sewage/*analysis MH - Waste Disposal, Fluid MH - Wastewater/*analysis MH - Water Pollutants, Chemical/*analysis EDAT- 2013/08/13 06:00 MHDA- 2015/06/24 06:00 CRDT- 2013/08/13 06:00 PHST- 2013/05/22 00:00 [received] PHST- 2013/07/29 00:00 [accepted] PHST- 2013/08/13 06:00 [entrez] PHST- 2013/08/13 06:00 [pubmed] PHST- 2015/06/24 06:00 [medline] AID - 10.1007/s11356-013-2044-8 [doi] PST - ppublish SO - Environ Sci Pollut Res Int. 2015 Feb;22(3):1804-11. doi: 10.1007/s11356-013-2044-8. Epub 2013 Aug 10.