Presentation Objectives Document the prevalence of the biomarkers for 7 specific OP insecticides among migrant and seasonal farmworkers in North Carolina Delineate the predictors for OP biomarkers among these farmworkers Presentation Objectives † Document the prevalence of the biomarkers for 7 specific OP insecticides among migrant and seasonal farmworkers in North Carolina † Delineate the predictors for OP biomarkers among these farmworkers