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

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

doi:https://doi.org/10.5194/acp-15-1411-2015

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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Final revised paper (published on 09 Feb 2015)
Supplement to the final revised paper
Preprint (discussion started on 30 Sep 2014)
Supplement to the preprint

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC C8483: 'Review: Atmos. Chem. Phys. Discuss., 14, 25027–25050, 2014', Roland Kallenborn, 25 Oct 2014
- AC C10797: 'Response to Reviewer 1 (Roland Kallenborn)', Terry Bidleman, 05 Jan 2015
RC C8489: 'Reviewer comments', Anonymous Referee #2, 26 Oct 2014
- AC C10798: 'Response to Reviewer 2 (anonymous)', Terry Bidleman, 05 Jan 2015
RC C8559: 'review of acp-2014-638', Anonymous Referee #3, 28 Oct 2014
- AC C10799: 'Response to Reviewer 3 (anonymous)', Terry Bidleman, 05 Jan 2015

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

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

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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.