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Shorter than short-chain: Very short-chain chlorinated paraffins (vSCCPs) found in wildlife from the Yangtze River Delta
Stockholm University, Faculty of Science, Department of Environmental Science and Analytical Chemistry.
Stockholm University, Faculty of Science, Department of Environmental Science and Analytical Chemistry. Shimadzu (China) Co. LTD., China.
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Number of Authors: 52019 (English)In: Environment International, ISSN 0160-4120, E-ISSN 1873-6750, Vol. 130, article id 104955Article in journal (Refereed) Published
Abstract [en]

Very short-chain chlorinated paraffins (vSCCPs, C6-9) occurred in 94% of wildlife samples from the Yangtze River Delta (YRD), China, with CnClm comparable to that of a local CP product, CP-52. Therefore, we determined the content of vSCCPs in CP-52 using a mathematical deconvolution technique. Then with CP-52 and several other reference standards, vSCCPs together with short-, medium-, and long-chain CPs were quantified in 21 wildlife species from an artificial wetland ecosystem and a freshwater ecosystem in the YRD. Concentrations of vSCCPs ranged from 2.6 to 8400 ng/g lipid. These concentrations were 1.2-380 fold lower than SCCPs, but were significantly correlated with those of SCCPs. vSCCP concentrations were comparable to or higher than reported for brominated flame retardants in the same samples. Bioaccumulation tendency of vSCCPs was identified in two benthic species, indicating congener-specific accumulation of vSCCPs in the environment.

Place, publisher, year, edition, pages
2019. Vol. 130, article id 104955
Keywords [en]
Very short-chain chlorinated paraffins (vSCCPs), Commercial product impurities, Environmental measurement, Merging contaminants, Species-specific bioaccumulation
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:su:diva-171942DOI: 10.1016/j.envint.2019.104955ISI: 000477934800075PubMedID: 31260927OAI: oai:DiVA.org:su-171942DiVA, id: diva2:1348982
Available from: 2019-09-06 Created: 2019-09-06 Last updated: 2019-09-06Bibliographically approved

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de Wit, Cynthia A.Yin, GeYuan, Bo
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