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Organochlorine pesticides in lacustrine sediments and tilapias of Metztitlan, Hidalgo, Mexico

dc.creatorFernández Bringas, Laura M.
dc.creatorPonce Vélez, Guadalupe
dc.creatorCalva B., Laura G.
dc.creatorSalgado Ugarte, Isaías Hazamamberth
dc.creatorBotello, Alfonso V.
dc.creatorDíaz González, Giberto
dc.date2006-11-06
dc.date.accessioned2016-05-03T15:27:59Z
dc.date.available2016-05-03T15:27:59Z
dc.identifierhttp://revistas.ucr.ac.cr/index.php/rbt/article/view/5716
dc.identifier10.15517/rbt.v56i3.5716
dc.identifier.urihttp://hdl.handle.net/10669/26300
dc.descriptionThe organochlorine pesticides (OP) are very stable molecules, due to this stability; they are very resistant in the environment and highly related to fat tissues with a wide diffusion property and an average time life higher then 10 years. We studied sediments (November 2001, April and June 2002) and organisms collected in April and July (2002) from the lacustric zone of Metzitlán, Hidalgo, Mexico. The analysis was performed according to UNEP/IAEA (1982) (sediments) and UNEP/FAO/IOC/IAEA (1986) (organisms) methods. Three chemical families of organochlorine pesticides were identified and analyzed to determine posible toxicological risk. The principal organochlorine compounds found in sediments were g-HCH, d-HCH, p,p'-DDT and the endosulfan sulfate; these xenobiotics come from agriculture lands near the river and lake, used intensively, and most probably carried by the rain and rain flows into the main water body. In the tilapias tissue, p,p'-DDD y d-HCH were detected. The average concentrations of organochlorine pesticides in sediments were within the internacional limits for freshwater benthonic fauna, although lindane (g-HCH) was near the limit. The fish were above the criteria established in the local legislation (NOM-027-SSA1-1993 y NOM-028-SSA1-1993).en-US
dc.formatapplication/pdf
dc.languageeng
dc.publisherUniversidad de Costa Ricaen-US
dc.rightsCopyright (c) 2014 International Journal of Tropical Biology and Conservationen-US
dc.sourceRevista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 56 (3) September 2008en-US
dc.sourceRevista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 56 (3) September 2008es-ES
dc.sourceRevista Biología Tropical; Vol. 56 (3) September 2008pt-PT
dc.source2215-2075
dc.source0034-7744
dc.source10.15517/rbt.v56i3
dc.titleOrganochlorine pesticides in lacustrine sediments and tilapias of Metztitlan, Hidalgo, Mexicoen-US
dc.titleOrganochlorine pesticides in lacustrine sediments and tilapias of Metztitlan, Hidalgo, Mexicoes-ES
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.coverageCRCen


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