PMID- 23254566 OWN - NLM STAT- MEDLINE DCOM- 20131118 LR - 20211021 IS - 1432-0703 (Electronic) IS - 0090-4341 (Print) IS - 0090-4341 (Linking) VI - 64 IP - 3 DP - 2013 Apr TI - Exposure assessment of organochlorine pesticides, arsenic, and lead in children from the major agricultural areas in Sonora, Mexico. PG - 519-27 LID - 10.1007/s00244-012-9846-4 [doi] AB - There is a lack of information of exposure to organochlorine pesticides (OCP) and some metals, such as lead (Pb) and arsenic (As), both of which were used as arsenicals pesticides, in children living in the major agricultural areas of Mexico. The objective of this study was to assess the exposure of children to different OCP, As, and Pb in the Yaqui and Mayo valleys of Sonora to generate population baseline levels of these toxins. A cross-sectional study was undertaken in 165 children (age 6-12 years old) from 10 communities from both valleys during 2009. Blood samples were analyzed for OCP and Pb and first morning void urine for inorganic As (InAs). All of the blood samples had detectable levels of dichlorodiphenyltrichloroethylene (p,p'-DDE) ranging from 0.25 to 10.3 mug/L. However lindane, dichlorodiphenyltrichloroethane (p,p'-DDT), aldrin, and endosulfan were detected in far less of the population (36.4, 23.6, 9.1, and 3 %, respectively). Methoxychlor and endrin were not found in any sample. The average value of Pb in this population was 3.2 mug Pb/dL (range 0.17-9.0) with 8.5 % of the samples having levels <5.0 mug Pb/dL. Urinary As levels ranged from 5.4 to 199 mug As/L with an average value of 31.0 mug As/L. Levels > 50 mug/L were observed in 12.7 % of the samples. Our results show that is important to start a risk-reduction program to decrease exposure to these toxins in Mexican communities. In addition, the results can be used to establish the baseline levels of exposure to these toxins in this agricultural region and may be used as a reference point for regulatory agencies. FAU - Meza-Montenegro, Maria M AU - Meza-Montenegro MM AD - Department of Natural Resources, ITSON, 5 de Febrero 818 Sur, Zona Centro, 85000, Cd. Obregon, Sonora, Mexico. mmeza@itson.mx FAU - Valenzuela-Quintanar, Ana I AU - Valenzuela-Quintanar AI FAU - Balderas-Cortes, Jose J AU - Balderas-Cortes JJ FAU - Yanez-Estrada, Leticia AU - Yanez-Estrada L FAU - Gutierrez-Coronado, Maria L AU - Gutierrez-Coronado ML FAU - Cuevas-Robles, Alberto AU - Cuevas-Robles A FAU - Gandolfi, A Jay AU - Gandolfi AJ LA - eng GR - P30 ES006694/ES/NIEHS NIH HHS/United States GR - P42 ES004940/ES/NIEHS NIH HHS/United States PT - Journal Article DEP - 20121220 PL - United States TA - Arch Environ Contam Toxicol JT - Archives of environmental contamination and toxicology JID - 0357245 RN - 0 (Environmental Pollutants) RN - 0 (Hydrocarbons, Chlorinated) RN - 0 (Pesticides) RN - 2P299V784P (Lead) RN - N712M78A8G (Arsenic) SB - IM MH - *Agriculture MH - Arsenic/*urine MH - Child MH - Cross-Sectional Studies MH - Environmental Exposure/*analysis MH - Environmental Monitoring MH - *Environmental Pollutants/blood/urine MH - Female MH - Humans MH - Hydrocarbons, Chlorinated/*blood MH - Lead/*blood MH - Male MH - Mexico MH - Pesticides/*blood MH - Rural Population PMC - PMC4023507 MID - NIHMS575147 EDAT- 2012/12/21 06:00 MHDA- 2013/11/19 06:00 PMCR- 2014/05/16 CRDT- 2012/12/21 06:00 PHST- 2012/06/18 00:00 [received] PHST- 2012/11/05 00:00 [accepted] PHST- 2012/12/21 06:00 [entrez] PHST- 2012/12/21 06:00 [pubmed] PHST- 2013/11/19 06:00 [medline] PHST- 2014/05/16 00:00 [pmc-release] AID - 10.1007/s00244-012-9846-4 [doi] PST - ppublish SO - Arch Environ Contam Toxicol. 2013 Apr;64(3):519-27. doi: 10.1007/s00244-012-9846-4. Epub 2012 Dec 20.