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CTEPP: RECRUITING AND FIELD SAMPLING IN NORTH CAROLINA AND OHIO
Citation:
Wilson, N K., C. Lyu, J. C. Chuang, AND M K. Morgan. CTEPP: RECRUITING AND FIELD SAMPLING IN NORTH CAROLINA AND OHIO. Presented at 11th Annual Meeting of the International Society of Exposure Analysis, Charleston, SC, November 4-8, 2001.
Impact/Purpose:
The overall objectives of CTEPP were to measure the aggregate exposures of approximately 260 preschool children and their adult caregivers to low levels of a suite of pesticides and organic pollutants that the children may encounter in their everyday environments, and to apportion the routes of exposure and estimate the relative contributions of each route.
Description:
The research field study (CTEPP) of approximately 260 preschool children's exposures to persistent organic pollutants in their everyday environments began in early 2000. CTEPP is a multimedia study of the children's aggregate (total) exposures over a 48-hr period, both at their homes and day care centers. The aggregate exposures of each child's primary caregiver, usually a parent, are also estimated. Participants are randomly selected from six counties in North Carolina and six in Ohio. Half of the children attend day care and half do not. Children in the targeted age group who attend day care are randomly selected from participating day care centers. Participants, who did not attend day care centers, were selected using random digit dialing. Samples include indoor and outdoor air, house and classroom dust, play area soil, liquid and solid food, drinking water, hand wipes, and urine. In homes or classrooms where pesticides have been recently applied, floor dislodgeable residues and surface wipes of the floor and food preparation surfaces are also collected. Extensive questionnaire information on household characteristics and activity diaries for the children are also collected. Field sampling for a total of 130 North Carolina preschool children (63 and 67 from day care centers and homes, respectively) between July 2000 and March 2001 is complete. Field sampling is being performed in Ohio and will be complete in late Fall 2001. We summarize here the recruiting and sampling results, along with some preliminary results of the multimedia chemical analyses for selected North Carolina households.
This work has been funded wholly or in part by the United States Environmental Protection Agency under contract #68-D-99-011 to Battelle. It has been subjected to Agency review and approved for publication.