Detections of Commercial Fluorosurfactants in Hong Kong Marine Environment and Human Blood: A Pilot Study

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Loi, Eva I. H.State Key Laboratory in Marine Pollution, Department of Biology and Chemistry, City University of Hong Kong, Hong Kong SAR, China (författare)

Detections of Commercial Fluorosurfactants in Hong Kong Marine Environment and Human Blood : A Pilot Study

Artikel/kapitelEngelska2013

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2013-04-08
American Chemical Society (ACS),2013
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LIBRIS-ID:oai:DiVA.org:oru-49967
https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-49967URI
https://doi.org/10.1021/es303805kDOI

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Språk:engelska
Sammanfattning på:engelska

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Funding Agencies:Research Grants Councils of the Hong Kong Special Administrative Region, China CityU160610City University Postgraduate Studentship
Previously, much of the perfluoroalkyl and polyfluoroalkyl substance (PFAS) research has focused on perfluoroalkyl carboxylates (PFCAs) or perfluoroalkane sulfonates (PFSAs). Recent studies indicate that known PFCAs and PFSAs accounted for 5-95% of the organofluorine (OF) in human and wild rat blood samples suggesting that a relatively large proportion of OF remained unknown. Until recently, some studies reported commercially available compounds such as polyfluoroalkyl phosphate diesters (diPAPs) and fluorotelomer sulfonates (FTSAs) in human blood and sludge samples. The present investigation is a pilot study aiming at surveying some newly identified PFASs such as diPAPs, FTSAs, and perfluorinated phosphinates (PFPiAs) in different environmental samples including surface water, sediment, sewage treatment plant influent and effluent, sludge, benthic worm, and human blood from Hong Kong. DiPAPs (6:2, 6:2/8:2, and 8:2) were detected in some of the samples at part-per-billion (ppb) levels in sludge, sub ppb levels in influent and effluent, sediment, worm, and human blood samples, and sub part-per-trillion (ppt) levels in surface waters. Sub ppt to ppb levels of 6:2 and 8:2 FTSAs were observed in worm, surface water, and human blood samples. PFPiAs were only observed in worm samples. The detected "new PFASs" accounted for a minor proportion (less than 5%) of the total PFASs in benthic worm and human blood, but up to 95% in sewage sludge samples from Hong Kong. This is the first report of commercial fluorosurfactants (PFPiAs, diPAPs, and FTSAs) in the samples from the environment and human blood in Hong Kong; further information on the distribution, fate, and transport of "new PFASs" in other Asian cities, as well as toxicity, is needed for further assessing the human exposure and risk.

Ämnesord och genrebeteckningar

NATURVETENSKAP Geovetenskap och miljövetenskap Miljövetenskap hsv//swe
NATURAL SCIENCES Earth and Related Environmental Sciences Environmental Sciences hsv//eng
Enviromental Science
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Yeung, Leo W. Y.,1981-Department of Chemistry, University of Toronto, Toronto ON, Canada(Swepub:oru)lyg (författare)
Mabury, Scott A.Department of Chemistry, University of Toronto, Toronto ON, Canada (författare)
Lam, Paul K. S.State Key Laboratory in Marine Pollution, Department of Biology and Chemistry, City University of Hong Kong, Hong Kong SAR, China (författare)
State Key Laboratory in Marine Pollution, Department of Biology and Chemistry, City University of Hong Kong, Hong Kong SAR, ChinaDepartment of Chemistry, University of Toronto, Toronto ON, Canada (creator_code:org_t)

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Ingår i:Environmental Science and Technology: American Chemical Society (ACS)47:9, s. 4677-46850013-936X1520-5851

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Av författaren/redakt...: Loi, Eva I. H.; Yeung, Leo W. Y. ...; Mabury, Scott A.; Lam, Paul K. S.

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