Predictors of exposure to organophosphate pesticides in schoolchildren in the Province of Talca, Chile
Author
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Muñoz Quezada, María Teresa
Author
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Iglesias, Verónica
Author
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Lucero, Boris
Author
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Steenland, Kyle
Author
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Barr, Dana Boyd
Author
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Levy, Karen
Author
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Ryan, P. Barry
Author
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Alvarado, Sergio A.
Author
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Concha, Carlos
Admission date
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2019-03-11T13:04:02Z
Available date
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2019-03-11T13:04:02Z
Publication date
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2012
Cita de ítem
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Environment International, Volumen 47,
Identifier
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18736750
Identifier
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01604120
Identifier
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10.1016/j.envint.2012.06.002
Identifier
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https://repositorio.uchile.cl/handle/2250/165598
Abstract
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Background: Few data exist in Latin America concerning the association between organophosphate (OP) urinary metabolites and the consumption of fruits and vegetables and other exposure risk variables in schoolchildren. Methods: We collected samples of urine from 190 Chilean children aged 6-12. years, fruits and vegetables, water and soil from schools and homes, and sociodemographic data through a questionnaire. We measured urinary dialkylphosphate (DAP) OP metabolites and OP pesticide residues in food consumed by these 190 children during two seasons: December 2010 (summer) and May 2011 (fall). We analyzed the relationship between urinary DAP concentrations and pesticide residues in food, home pesticide use, and residential location. Results: Diethylalkylphosphates (DEAP) and dimethylalkylphosphates (DMAP) were detected in urine in 76% and 27% of the samples, respectively. Factors associated with urinary DEAP included chlorpyrifos in consumed fruits (. p<. 0.0001), urinary creatinine (.