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Atmospheric Short-chain Chlorinated Paraffins in China, Japan and South Korea.
MedLine Citation:
PMID:  23025799     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
This study presents the first investigation of concentrations and congener group patterns of atmospheric short-chain chlorinated paraffins (SCCPs) throughout East Asia. Based on an absorption rate calibration experiment, a spatial survey of SCCPs was performed using passive air samplers in China, Japan and South Korea during two separate periods in 2008. The atmospheric concentrations of SCCPs in China were clearly greater than those in Japan and South Korea, both of which exceed the levels determined for other regions of the world. C10 components were the most abundant type of SCCPs in China, whereas C11 components were dominant in Japan and South Korea. With respect to the total chlorine content, Cl6 and Cl5 were the predominant compounds in China and Japan; however, Cl6 and Cl7 were predominant in South Korea. A similar pattern was also found for remote sites within China, Japan and South Korea, respectively. Together with the back-trajectories calculated for the remote sites, the results indicate that the SCCPs in the air of East Asia were mainly influenced by local sources due to their relatively low long-range atmospheric transport potential compared to other POPs.
Authors:
Qilu Li; Jun Li; Yan Wang; Yue Xu; Xiaohui Pan; Gan Zhang; Chunling Luo; Yuso Kobara; J J Nam; Kevin C Jones
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-2
Journal Detail:
Title:  Environmental science & technology     Volume:  -     ISSN:  1520-5851     ISO Abbreviation:  Environ. Sci. Technol.     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0213155     Medline TA:  Environ Sci Technol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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