title: Arsenic in Mexican children exposed to contaminated well water.
abstract: This cross-sectional study measures the arsenic level in school children exposed to contaminated well water in a rural area in México. Arsenic was measured in hair by hydride generation atomic absorption spectrophotometry. Overall, 110 children were included (average 10 years-old). Among 55 exposed children, mean arsenic level on hair was 1.3 mg/kg (range <0.006-5.9). All unexposed children had undetectable arsenic levels. The high level of arsenic in water was associated to the level in hair. However, exposed children drank less well water at school or at home than unexposed children, suggesting that the use of contaminated water to cook beans, broths or soups may be the source of arsenic exposure.
authors: Facultad de Medicina de León, University of Guanajuato School of Medicine, León Guanajuato, México. rmonroy79@yahoo.com.mx
authors: Rebeca
authors: R
authors: Monroy-Torres
authors: Alejandro E
authors: AE
authors: Macías
authors: Juan Carlos
authors: JC
authors: Gallaga-Solorzano
authors: Enrique Javier
authors: EJ
authors: Santiago-García
authors: Isabel
authors: I
authors: Hernández
mesh_terms: D000293:Adolescent; D001151:Arsenic / Q000032:analysis*; D002648:Child; D003296:Cooking; D003430:Cross-Sectional Studies; D060766:Drinking Water / Q000737:chemistry*; D004784:Environmental Monitoring / Q000379:methods*; D005260:Female; D006197:Hair / Q000737:chemistry*; D006801:Humans; D008297:Male; D008800:Mexico; D014876:Water Pollution / Q000032:analysis*; D014881:Water Supply / Q000592:standards
chemical_list: D060766:Drinking Water; D001151:Arsenic