Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Organochlorine pesticides and PCBs in air of southern Mexico (2002–2004)
AbstractAir 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 2360pg 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.
Organochlorine pesticides and PCBs in air of southern Mexico (2002–2004)
AbstractAir 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 2360pg 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.
Organochlorine pesticides and PCBs in air of southern Mexico (2002–2004)
Alegria, Henry A. (Autor:in) / Wong, Fiona (Autor:in) / Jantunen, Liisa M. (Autor:in) / Bidleman, Terry F. (Autor:in) / Figueroa, Miguel Salvador (Autor:in) / Bouchot, Gerardo Gold (Autor:in) / Moreno, Victor Ceja (Autor:in) / Waliszewski, Stefan M. (Autor:in) / Infanzon, Raul (Autor:in)
Atmospheric Environment ; 42 ; 8810-8818
02.04.2008
9 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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