Thomas A Arcury1, Paul J Laurienti, Haiying Chen, Timothy D Howard, Dana Boyd Barr, Dana C Mora, Phillip Summers, Sara A Quandt. 1. Department of Family and Community Medicine (Drs Arcury, Mora, Summers); Center for Worker Health (Drs Arcury, Chen, Howard, Mora, Summers, Quandt); Department of Radiology (Dr Laurienti); Department of Biostatistical Sciences, Division of Public Health Sciences (Dr Chen); Center for Genomics & Personalized Medicine Research, Wake Forest School of Medicine, Winston-Salem, North Carolina (Dr Howard); Department of Environmental and Occupational Health, Rollins School of Public Health of Emory University, Atlanta, Georgia (Dr Barr); and Department of Epidemiology and Prevention, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina (Dr Quandt).
Abstract
BACKGROUND: This analysis documents detections and concentrations of the six dialkylphosphate (DAP) urinary metabolite of organophosphorus (OP) pesticides among North Carolina Latino migrant farmworkers, with comparison to non-farmworker Latino immigrants. METHODS: Participants provided up to four urine samples during the 2012 and 2013 agricultural seasons. Composite urine samples for each year were analyzed. RESULTS: DAP urinary metabolite detections were similar in farmworkers and non-farmworker; for example, for 2012, 75.4% of farmworkers and 67.4% of non-farmworkers and, for 2013, 89.3% of farmworkers and 89.7% of non-farmworkers had dimethylthiophosphate detections. DAP geometric mean concentrations were high; for example, dimethylphosphate concentrations among farmworkers were 11.39 μg/g creatinine for 2012 and 4.49 μg/g creatinine for 2013, while they were 10.49 μg/g creatinine for 2012 and 1.97 μg/g creatinine for 2013 for non-farmworkers CONCLUSIONS: : Research to reduce pesticide exposure among Latino farmworkers and non-farmworkers is needed.
BACKGROUND: This analysis documents detections and concentrations of the six dialkylphosphate (DAP) urinary metabolite of organophosphorus (OP) pesticides among North Carolina Latino migrant farmworkers, with comparison to non-farmworker Latino immigrants. METHODS:Participants provided up to four urine samples during the 2012 and 2013 agricultural seasons. Composite urine samples for each year were analyzed. RESULTS:DAP urinary metabolite detections were similar in farmworkers and non-farmworker; for example, for 2012, 75.4% of farmworkers and 67.4% of non-farmworkers and, for 2013, 89.3% of farmworkers and 89.7% of non-farmworkers had dimethylthiophosphate detections. DAP geometric mean concentrations were high; for example, dimethylphosphate concentrations among farmworkers were 11.39 μg/g creatinine for 2012 and 4.49 μg/g creatinine for 2013, while they were 10.49 μg/g creatinine for 2012 and 1.97 μg/g creatinine for 2013 for non-farmworkers CONCLUSIONS: : Research to reduce pesticide exposure among Latino farmworkers and non-farmworkers is needed.
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