Air samples were collected in southern Mexico in 2002–2004 to determine the extent of contamination with organochlorine (OC) pesticides and polychlorinated biphenyls (PCBs). The ΣDDTs ranged from 239 to 2360 pg m−3. Other prominent OC pesticides were endosulfans, toxaphene and lindane. Pesticides detected in lower concentrations include chlordanes, dieldrin, and heptachlor. Proportions of DDT compounds suggested fresh use of DDT in some locations and a mix of fresh and aged residues at others. Ratios of trans-chlordane/cis-chlordane were consistent with fresh chlordane usage or emission of residues from former termiticide applications. The ΣPCBs was relatively low at all sites. Concentrations of OC pesticides measured with passive samplers agreed well with those measured using high-volume samplers. Air back trajectory analysis suggests a complex pattern of regional atmospheric transport.
Article
Organochlorine pesticides and PCBs in air in southern Mexico: 2002-2004.
USF St. Petersburg campus Faculty Publications
Document Type
Article
Publication Date
2008
Disciplines
Abstract
Publisher
Pergamon Press
Creative Commons License
Creative Commons Attribution-Noncommercial-No Derivative Works 4.0
Citation Information
Alegria, H.A., Wong, F., Jantunen, L.M., Bidleman, T.F., Salvador, M., Gold-Bouchot, G., … Infanzon, R. (2008). Organochlorine pesticides and PCBs in air in southern Mexico: 2002-2004. Atmospheric Environment, 42(38), 8810-8818. doi: 10.1016/j.atmosenv.2008.04.053.
Abstract only. Full-text article is available through licensed access provided by the publisher. Published in Atmospheric Environment, 42(38), 8810-8818. doi: 10.1016/j.atmosenv.2008.04.053. Members of the USF System may access the full-text of the article through the authenticated link provided.