Exposures of 129 Preschool Children to Organochlorines, Organophosphates, Pyrethroids, and Acid Herbicides at Their Homes and Daycares in North Carolina

Marsha K. Morgan, Nancy K. Wilson and Jane C. Chuang
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Marsha K. Morgan: National Exposure Research Laboratory, United States Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27709, USA
Nancy K. Wilson: Battelle, Durham, NC 27713, USA
Jane C. Chuang: Battelle, Columbus, OH 43201, USA

IJERPH, 2014, vol. 11, issue 4, 1-22

Abstract: Few data exist on the concurrent exposures of young children to past-use and current-use pesticides in their everyday environments. In this further analysis of study data, we quantified the potential exposures and intake doses of 129 preschool children, ages 20 to 66 months, to 16 pesticides (eight organochlorines, two organophosphates, three pyrethroids, and three acid herbicides). Environmental samples (soil, dust, outdoor air, and indoor air) and personal samples (hand wipes, solid food, and liquid food) were collected at 129 homes and 13 daycare centers in six counties in North Carolina between 2000 and 2001. ? -Chlordane, ? -chlordane, heptachlor, chlorpyrifos, diazinon, cis- permethrin, trans -permethrin, and 2,4-dichlorophenoxyacetic acid (2,4-D) were detected ?50% in two or more media in both settings. Of these pesticides, the children’s estimated median potential intake doses through dietary ingestion, nondietary ingestion, and inhalation routes were the highest for 2,4-D and cis/trans -permethrin (both 4.84 ng/kg/day), cis/trans -permethrin (2.39 ng/kg/day), and heptachlor (1.71 ng/kg/day), respectively. The children’s estimated median potential aggregate intake doses by all three routes were quantifiable for chlorpyrifos (4.6 ng/kg/day), cis/trans -permethrin (12.5 ng/kg/day), and 2,4-D (4.9 ng/kg/day). In conclusion, these children were likely exposed daily to several pesticides from several sources and routes at their homes and daycares.

Keywords: children; pesticides; exposure; intake dose; residences; daycare centers (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2014
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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