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DERMAL TRANSFER EFFICIENCY OF PESTICIDES FROM NEW, VINYL SHEET FLOORING TO DRY AND WETTED PALMS
Citation:
Clothier, J. M. DERMAL TRANSFER EFFICIENCY OF PESTICIDES FROM NEW, VINYL SHEET FLOORING TO DRY AND WETTED PALMS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/R-00/029 (NTIS PB2000-101990), 2000.
Impact/Purpose:
The goal of this task is to contribute to a better understanding of human exposure to pesticides, especially for small children by developing methods to characterize sources and pathways in and around the residential environment. We will support the science behind FQPA and assist the Office of Pesticide Programs (OPP) in the development of guidelines for the assessment of residential exposure to pesticides. Specific research objectives include: (i) to evaluate and develop methods for measuring pesticides in air using passive/diffusive samplers. Assess and refine devices for the collection of surface transferable pesticide residues and to establish transfer efficiencies; (ii) to develop and apply analytical methods for new and emerging pesticides using both gas and liquid chromatographic methods in support of the National Exposure Research Laboratory's (NERL) Human Exposure Measurement Project; and, (iii) to conduct pilot studies investigating chiral chromatographic methods.
Description:
The USEPA is concerned about the exposure of humans to pesticide residues contained in or on various surfaces found within the home environment. Studies have been conducted to evaluate a variety of home surfaces for surface-dislodgeable residues, which are those that are most readily available for transfer to human skin. These surface residues are thereby available for ingestion by infants and toddlers through mouthing activities involving their fingers, hands, feet, and toys. In earlier studies designed to evaluate dislodgeable residue transfer of chlorpyrifos, pyrethrins, and piperonyl bu-toxide from carpet (Task 3 of Work Assignment III-76), moistened palms transferred between 3-6 times more residue from carpet than did dry palms. The emphasis in this study, therefore, was placed on determining whether the same relationship existed with residues transferred from pesticide-treated vinyl flooring unto dry and wetted palms.
The U.S. Environmental Protection Agency through its Office of Research and Development funded and managed the research described here under contract 68-D5-0049 to ManTech Environmental Technology, Inc., and ManTech's subcontract 96-0049-01 to Southwest Research Institute. It has been subjected to the Agency's peer and administrative review and has been approved for publication as an EPA document. Mention of trade names or commercial products does not constitute endorsement or recommendation for use