Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 15, issue 3
Articles | Volume 15, issue 3
https://doi.org/10.5194/acp-15-1411-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-15-1411-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 15, issue 3
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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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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