Biomarkers : biochemical indicators of exposure, response, and susceptibility to chemicals
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Organophosphorus insecticides (OPs) have been used to control agricultural pests found in Washington state. Farmworkers (FW) have higher exposure to OP pesticides than non-farmworkers (NFW), and FW children may in turn have higher exposure than NFW children. ⋯ To our knowledge, this study is the first to report an association between pesticides in house dust and their biological metabolites in urine.