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Geographical Differences in Dietary Exposure to Perfluoroalkyl Acids between Manufacturing and Application Regions in China
College of Environment, Zhejiang University of Technology, Hangzhou, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China.
Norwegian Institute for Air Research (NILU), FRAM − High North Research Centre on Climate and the Environment, Tromsø, Norway; ACES - Department of Environmental Science and Analytical Chemistry, Stockholm University, Stockholm, Sweden .
Örebro universitet, Institutionen för naturvetenskap och teknik. State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China. (MTM Research Centre)ORCID-id: 0000-0002-5729-1908
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China.
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2017 (engelsk)Inngår i: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851, Vol. 51, nr 10, s. 5747-5755Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Emissions of perfluoroalkyl acids (PFAAs) have increased in China over the past decade, but human exposure pathways are poorly understood. Here we analyzed 15 PFAAs in commonly consumed food items and calculated body weight normalized dietary intake rates (estimated dietary intake, EDIs) in an area with ongoing PFAA production (Hubei province; n = 121) and an urbanized coastal area (Zhejiang province; n = 106). Geographical differences in concentrations were primarily observed for perfluorooctanesulfonic acid (PFOS) and perfluorohexanesulfonic acid (PFHxS) in animal food items and short chain PFAAs in vegetable food items. The average EDI of Sigma PFAAs for adults in Hubei (998 ng kg(-1) day(-1)) was more than 2 orders of magnitude higher than that in Zhejiang (9.03 ng kg-1 day(-1)). In Hubei province, the average EDI of PFOS for adults (87 ng kg(-1) day(-1)) was close to or exceeded advisory guidelines used in other countries indicating health risks for the population from long-term exposure. Yet, PFOS could only account for about 10% of the EDI of Sigma PFAAs in the Hubei province, which was dominated by short-chain PFAAs through consumption of vegetables. The large contribution of short-chain PFAAs to the total EDIs in manufacturing areas emphasize the need for improved exposure and hazard assessment tools of these substances.

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American Chemical Society (ACS), 2017. Vol. 51, nr 10, s. 5747-5755
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URN: urn:nbn:se:oru:diva-57912DOI: 10.1021/acs.est.7b00246ISI: 000401674400044PubMedID: 28387520OAI: oai:DiVA.org:oru-57912DiVA, id: diva2:1106970
Merknad

Funding Agencies:

Chinese Academy of Sciences  GJHZ1202 

Norwegian Research Council for funding  209666/E40 

National Natural Science Foundation of China  21507113 

Natural Science Foundation of Zhejiang Province  LY15B070006 

Tilgjengelig fra: 2017-06-08 Laget: 2017-06-08 Sist oppdatert: 2017-09-18bibliografisk kontrollert

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