Organochlorine pesticides and PCBs in air of southern Mexico (2002-2004)

被引：43

作者：

Alegria, Henry A. ^{[1
]}

Wong, Fiona ^{[2
,7
]}

Jantunen, Liisa M. ^{[3
]}

Bidleman, Terry F. ^{[3
]}

Salvador Figueroa, Miguel ^{[4
]}

Gold Bouchot, Gerardo ^{[5
]}

Ceja Moreno, Victor ^{[5
]}

Waliszewski, Stefan M. ^{[6
]}

Infanzon, Raul ^{[6
]}

机构：

[1] Univ S Florida, Dept Environm Sci Policy & Geog, St Petersburg, FL 33701 USA

[2] Environm Canada, Sci & Technol Branch, Toronto, ON M3H 5T4, Canada

[3] Environm Canada, Ctr Atmospher Res Expt, Egbert, ON L0L 1N0, Canada

[4] Univ Autonoma Chiapas, Fac Ciencias Quim, Dept Biotecnol, Tapachula, Chiapas, Mexico

[5] IPN, Ctr Invest & Estudios Avanzados, Merida 97310, Yucatan, Mexico

[6] Univ Veracruz, Inst Med Forense, Boca Del Rio, Veracruz, Mexico

[7] Univ Toronto, Dept Chem, Toronto, ON M5S 1A1, Canada

来源：

ATMOSPHERIC ENVIRONMENT | 2008年 / 42卷 / 38期

关键词：

Persistent organic pollutants; Organochlorine pesticides; Polychlorinated biphenyls; Air; Mexico;

D O I：

10.1016/j.atmosenv.2008.04.053

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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 Sigma DDTs ranged from 239 to 2360 pg m(-3). Other prominent OC pesticides were endo-sulfans, 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 transchlordane/cis-chlordane were consistent with fresh chlordane usage or emission of residues from former termiticide applications. The Sigma PCBs 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. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：8810 / 8818

页数：9

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