Articles | Volume 15, issue 3
https://doi.org/10.5194/acp-15-1411-2015
https://doi.org/10.5194/acp-15-1411-2015
Research article
 | 
09 Feb 2015
Research article |  | 09 Feb 2015

Annual cycles of organochlorine pesticide enantiomers in Arctic air suggest changing sources and pathways

T. F. Bidleman, L. M. Jantunen, H. Hung, J. Ma, G. A. Stern, B. Rosenberg, and J. Racine

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AR by Terry Bidleman on behalf of the Authors (06 Jan 2015)  Author's response   Manuscript 
ED: Publish as is (06 Jan 2015) by Ralf Ebinghaus
AR by Terry Bidleman on behalf of the Authors (09 Jan 2015)
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Short summary
Canadian Arctic air samples were analysed for enantiomers (mirror-image isomers) of pesticides α-hexachlorocyclohexane (α-HCH), trans-chlordane (TC) and cis-chlordane (CC). Annual cycles of enantiomer proportions suggested greater emission of microbially degraded residues from water and soil in warm vs. cold seasons. Enantiomer profiles may change in the future with rising contributions from secondary sources, monitoring them could increase the forensic capability in air monitoring programs.
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