PMID: 16646444May 2, 2006Paper

Temporal and spatial trends of organochlorine pesticides in Great Lakes precipitation

Environmental Science & Technology
Ping SunRonald A Hites

Abstract

Organochlorine pesticide concentrations in precipitation samples collected from 1997 to 2003 at seven Integrated Atmospheric Deposition Network sites around the Great Lakes are reported. The 28-day volume weighted mean concentrations of several pesticides, including gamma-hexachlorocyclohexane (HCH), endosulfan, hexachlorobenzene, chlordane, and DDE, showed significant seasonal trends. For current-use pesticides (endosulfan and gamma-HCH), their concentrations peaked in late spring to summer just after their agricultural application. For the banned pesticides, higher concentrations were observed in the winter due to their enhanced partitioning to particles and scavenging by snow. Long-term decreasing trends were observed for several pesticides such as gamma-HCH and DDE. On the other hand, beta-HCH showed significant increasing concentrations as a function of time at Brule River, Eagle Harbor, and Sleeping Bear Dunes. Generally, Chicago had the highest concentration of chlordanes, dieldrin, and DDT, indicating that urban areas could be a source for these compounds to precipitation. For gamma-HCH and endosulfans, Point Petre had the highest concentrations due to the application of these pesticides in the surrounding areas.

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Citations

Mar 23, 2010·Environmental Monitoring and Assessment·A K ChopraShikha Chamoli
Feb 5, 2016·Environmental Science and Pollution Research International·Banu CetinAbdurrahman Bayram
Feb 15, 2012·Chemosphere·Guosheng YangZhifang Chai
Sep 8, 2010·Environmental Toxicology and Chemistry·Anubha GoelRobert Scarborough
May 11, 2011·Environmental Pollution·Chongguo TianYi-Fan Li
Aug 21, 2013·Environmental Pollution·Matthew RobsonSean Backus
Apr 21, 2016·Environmental Science and Pollution Research International·S Sıddık Cindoruk, Erman Ozturk
Aug 28, 2013·The Science of the Total Environment·David AlvarezJennifer Morace
Jan 31, 2021·The Science of the Total Environment·Shengju YinLei Jin
Oct 12, 2010·Environmental Science & Technology·Marta Venier, Ronald A Hites

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