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PESTICIDES AND THEIR METABOLITES IN THE HOMES AND URINE OF FARMWORKER CHILDREN LIVING IN THE SALINAS VALLEY, CA
Citation:
BRADMAN, A., D. A. WHITAKER, L. QUIROS, R. CASTORINA, B. C. HENN, M. NISHIOKA, J. N. MORGAN, D. B. BARR, M. HARNLY, J. A. BRISBIN, L. S. SHELDON, T. MCKONE, AND B. ESKENAZI. PESTICIDES AND THEIR METABOLITES IN THE HOMES AND URINE OF FARMWORKER CHILDREN LIVING IN THE SALINAS VALLEY, CA. JOURNAL OF EXPOSURE ANALYSIS AND ENVIRONMENTAL EPIDEMIOLOGY. Nature Publishing Group, London, Uk, 17(4):331-349, (2007).
Impact/Purpose:
1. To identify those pesticides, pathways, and activities that represent the highest potential exposures to children;
2. To determine the factors that influence pesticide exposures to children;
3. To develop methods for measuring multimedia exposures to children, including methods that account for important activities that take place in home, school, and day care settings;
4. To generate data on multimedia pesticide concentrations, pesticide biomarkers, and exposure factors that can be used as inputs to aggregate exposure models for children.
Description:
This paper describes a study to test field methods for characterizing pesticide exposures to 20 farmworker children aged 5-27 months old living in the Salinas Valley of Monterey County, California. Methods for collecting house dust, indoor and outdoor air, dislodgeable residues from surfaces and toys, residues on clothing (sock and union suits), food, as well as spot and overnight diaper urine samples were tested. Twenty-nine common agricultural and home use pesticides were measured in multiple exposure media samples. A subset of organophosphorus (OP), organochlorine (OC) and pyrethroid pesticides were measured in food. Urine samples were analyzed for OP pesticide metabolites. Four field-based exposure assessment instruments: a questionnaire; food diary; home inspection; and a self-administered child activity timeline were administered.