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THE CTEPP DATABASE
Citation:
Brinkman, M. C., J. K. Finegold, J. C. Chuang, C. Lyu, J. Cashwell, N. K. Wilson, S. M. Gordon, M K. Morgan, AND C Croghan. THE CTEPP DATABASE. Presented at International Society of Exposure Analysis 2002 Conference, Vancouver, Canada, August 11-15, 2002.
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 CTEPP (Children's Total Exposure to Persistent Pesticides and Other Persistent Organic Pollutants) database contains a wealth of data on children's aggregate exposures to pollutants in their everyday surroundings. Chemical analysis data for the environmental media and questionnaire response data are stored in a series of tables that can be linked using the 6-digit, unique participant identification number (PID). Users can query both analytical and questionnaire data simultaneously to examine possible relationships between pollutant exposures and human activities. The environmental media analysis data include core analytical data, quality assurance and quality control data, and ancillary field data. Data field descriptions and restrictions for these three tables are outlined in the dictionary and code set tables. The CTEPP database incorporates analytical data from 12 different environmental matrix types, which were collected from subjects from 257 households, and analyzed for over 50 target analytes per sample. The questionnaire response data include recruitment survey, pre- and post-monitoring interviews, child activity and food diary, adult diary, daycare center menu, and house/building survey data. Combined, the analytical and questionnaire data for the CTEPP North Carolina and Ohio components, when completed, will total almost four million data points. The CTEPP database, one of the largest databases of children's exposure data in the United States, is a valuable resource that EPA will make available in the future to interested researchers and the public. We discuss here the database design and format of the analytical and questionnaire data.
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.