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Short-, medium- and long-chain chlorinated paraffins in wildlife from paddy fields in the Yangtze River Delta Xinyu Du, Bo Yuan, Yihui Zhou, Jonathan P. Benskin, Yanling Qiu, Ge Yin, and Jianfu Zhao Environ. Sci. Technol., Just Accepted Manuscript • DOI: 10.1021/acs.est.7b05595 • Publication Date (Web): 10 Jan 2018 Downloaded from http://pubs.acs.org on January 12, 2018
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Environmental Science & Technology
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Short-, medium- and long-chain chlorinated paraffins in
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wildlife from paddy fields in the Yangtze River Delta
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Xinyu Du1†, Bo Yuan2†, Yihui Zhou1*, Jonathan P. Benskin2, Yanling Qiu3, Ge Yin2,
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Jianfu Zhao1
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Environmental Science and Engineering, Tongji University, Shanghai 200092, China;
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State Key Laboratory of Pollution Control and Resource Reuse, College of Department of Environmental Science and Analytical Chemistry, Stockholm
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University, SE-10691 Stockholm, Sweden;
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College of Environmental Science and Engineering, Tongji University, Shanghai
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200092, China.
Key Laboratory of Yangtze River Water Environment (Ministry of Education),
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†
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These authors contributed equally to this research.
Corresponding author:
[email protected] 17 18
Word count: 5139 (main text) + 1 table (600 words) + 2 figures (1200 words) = 6939
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Abstract
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Short-chain chlorinated paraffins (SCCPs) were added to Annex A of the Stockholm
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Convention on Persistent Organic Pollutants in April, 2017. As a consequence of this
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regulation, increasing production and usage of alternatives, such as medium- and
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long-chain chlorinated paraffins (MCCPs and LCCPs, respectively), is expected.
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Little is known about the environmental fate and behavior of MCCPs and LCCPs. In
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the present study, SCCPs, MCCPs, and LCCPs were analyzed in nine wildlife species
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from paddy fields in the Yangtze River Delta, China, using atmospheric pressure
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chemical ionization-quadrupole time-of-flight mass spectrometry. SCCPs, MCCPs,
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and LCCPs were detected in all samples at concentrations ranging from LCCPs, contributing to (on average) 46%, 40% and 14% of the total CP
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burden, respectively. The exception was for two bird species (collared scops owl and 9
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common cuckoo) in which SCCPs were significantly (p
