A pilot study on extractable organofluorine and per- and polyfluoroalkyl substances (PFAS) in water from drinking water treatment plants around Taihu Lake, China: what is missed by target PFAS analysis?

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Jiao, EnmiaoKey Laboratory of Yangtze River Water Environment, College of Environmental Science and Engineering, Tongji University, China (author)

A pilot study on extractable organofluorine and per- and polyfluoroalkyl substances (PFAS) in water from drinking water treatment plants around Taihu Lake, China : what is missed by target PFAS analysis?

Article/chapterEnglish2022

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2022
Royal Society of Chemistry,2022
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LIBRIS-ID:oai:DiVA.org:oru-99547
https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-99547URI
https://doi.org/10.1039/d2em00073cDOI

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Language:English
Summary in:English

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Funding agencies:Major Science and Technology Program for Water Pollution Control and Treatment 2017ZX07201005National Key Research and Development Project of China 2021YFC3200801
Per- and polyfluoroalkyl substances (PFAS) have raised concerns due to their worldwide occurrence and adverse effects on both the environment and humans as well as posing challenges for monitoring. Further collection of information is required for a better understanding of their occurrence and the unknown fractions of the extractable organofluorine (EOF) not explained by commonly monitored target PFAS. In this study, eight pairs of raw and treated water were collected from drinking water treatment plants (DWTPs) around Taihu Lake in China and analyzed for EOF and 34 target PFAS. Mass balance analysis of organofluorine revealed that at least 68% of EOF could not be explained by target PFAS. Relatively higher total target concentrations were observed in 4 DWTPs (D1 to D4) when compared to other samples with the highest sum concentration up to 189 ng L-1. PFOA, PFOS and PFHxS were the abundant compounds. Suspect screening analysis identified 10 emerging PFAS (e.g., H-PFAAs, H-PFESAs and OBS) in addition to target PFAS in raw or treated water. The ratios PFBA/PFOA and PFBS/PFOS between previous and current studies showed significant replacements of short-chain to long-chain PFAS. The ratios of the measured PFAS concentrations to the guideline values showed that some of the treated drinking water exceeds guideline values, appealing for efforts on drinking water safety guarantee.

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Zhu, ZhiliangKey Laboratory of Yangtze River Water Environment, College of Environmental Science and Engineering, Tongji University, China (author)
Yin, DaqiangKey Laboratory of Yangtze River Water Environment, College of Environmental Science and Engineering, Tongji University, China (author)
Qiu, YanlingKey Laboratory of Yangtze River Water Environment, College of Environmental Science and Engineering, Tongji University, China (author)
Kärrman, Anna,1975-Örebro universitet,Institutionen för naturvetenskap och teknik,Man-Technology-Environment Research Centre (MTM)(Swepub:oru)ankn (author)
Yeung, Leo W. Y.,1981-Örebro universitet,Institutionen för naturvetenskap och teknik,Man-Technology-Environment Research Centre (MTM)(Swepub:oru)lyg (author)
Key Laboratory of Yangtze River Water Environment, College of Environmental Science and Engineering, Tongji University, ChinaInstitutionen för naturvetenskap och teknik (creator_code:org_t)

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In:Environmental Science: Royal Society of Chemistry24:7, s. 1060-10702050-78872050-7895

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By the author/editor: Jiao, Enmiao; Zhu, Zhiliang; Yin, Daqiang; Qiu, Yanling; Kärrman, Anna, 1 ...; Yeung, Leo W. Y. ...

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