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- Title
Para Niños Saludables: A Community Intervention Trial to Reduce Organophosphate Pesticide Exposure in Children of Farmworkers.
- Authors
Thompson, Beti; Coronado, Gloria D.; Vigoren, Eric M.; Griffith, William C.; Fenske, Richard A.; Kissel, John C.; Shirai, Jeffry H.; Faustman, Elaine M.
- Abstract
BACKGROUND; Exposure to organophosphate (OP) pesticides is an occupational hazard for farmworkers and affects their children through the take-home pathway. OBJECTIVES: We examined the effectiveness of a randomized community intervention to reduce pesticide exposure among fisrmworkers and their children. METHODS: We conducted a baseline survey of a cross-sectional sample of farmworkers (year 1) in 24 participating communities. Communities were randomized to intervention or control. After 2 years of intervention, a new cross-sectional survey of farmworkers was conducted (year 4). Farmworkers with a child 2-6 years of age were asked to participate in a substudy in which urine was collected from the farmworker and child, and dust was collected from the home and the vehicle driven to work. RESULTS: The median concentration of urinary metabolites was higher in year 4 than in year 1 for dimethylthiophosphate (DMTP) and dimethyldithiophosphate in adults and for DMTP for children. There were significant increases within both the intervention and control communities between year 1 and year 4 (p < 0.005); however, the differences were not significant between study communities after adjusting for year (p = 0.21). The dust residue data showed azinphos-methyl having the highest percentage of detects in vehicles (86% and 84% in years 1 and 4, respectively) and in house dust (85% and 83% in years 1 and 4, respectively). There were no significant differences between intervention and control communities after adjusting for year (p = 0.49). CONCLUSIONS: We found no significant decreases in urinary pesticide metabolite concentrations or in pesticide residue concentrations in house and vehicle dust from intervention community house- holds compared with control community households after adjusting for baseline. These negative findings may have implications for future community-wide interventions.
- Subjects
YAKIMA River Valley (Wash.); WASHINGTON (State); ORGANOPHOSPHORUS compounds &; the environment; PESTICIDE applicators (Persons); AGRICULTURAL laborers; ADULT-child relationships; RISK mitigation of pesticides; COMMUNITY education
- Publication
Environmental Health Perspectives, 2008, Vol 116, Issue 5, p687
- ISSN
0091-6765
- Publication type
Article
- DOI
10.1289/ehp.10882