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

Autor:	Stefan M. Waliszewski, Henry A. Alegria, Liisa M. Jantunen, Raúl Infanzón, Miguel Salvador Figueroa, Victor Ceja Moreno, Gerardo Gold Bouchot, Terry F. Bidleman, Fiona Wong
Rok vydání:	2008
Předmět:	Atmospheric Science Persistent organic pollutant Heptachlor Air pollution Chlordane Pesticide medicine.disease_cause Toxaphene chemistry.chemical_compound Dieldrin chemistry Environmental chemistry medicine Environmental science Lindane General Environmental Science
Zdroj:	Atmospheric Environment. 42:8810-8818
ISSN:	1352-2310
DOI:	10.1016/j.atmosenv.2008.04.053
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::41b5c2fc58331910c64f0d9a986d82cc https://doi.org/10.1016/j.atmosenv.2008.04.053 Zobrazit plný text záznamu Full Text from ScienceDirect