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Fluorescent tracer evaluation of chemical protective clothing during pesticide applications in central Florida citrus groves.

Authors
Fenske-RA; Birnbaum-SG; Methner-MM; Lu-C; Nigg-HN
Source
J Agric Saf Health 2002 Aug; 8(3):319-331
NIOSHTIC No.
20032274
Abstract
Chemical protective clothing (CPC) is often recommended as a method of exposure mitigation among pesticide applicators. This study evaluated four CPC regimens (cotton work shirts and work pants, cotton/polyester coveralls, and two non-woven garments) during 33 airblast applications of the organophosphorus insecticide ethion in central Florida citrus groves. CPC performance was determined by measurement of fluorescent tracer deposition on skin surfaces beneath garments with a video imaging analysis instrument (VITAE system), and by alpha-cellulose patches placed outside and beneath the garments. Non-woven coveralls allowed significantly greater exposure than did traditional woven garments, primarily because of design factors (e.g., large sleeve and neck openings). The greatest exposure occurred on the forearms beneath the non-woven garments. Fabric penetration was detected for all test garments; 5% to 7% of the ethion measured outside the garments was found beneath the garments. The clothing materials tested were not chemically resistant under these field conditions. Exposurepathways that would probably be undetected by the patch technique were characterized effectively with fluorescent tracers and video imaging analysis. However, the patch technique was more sensitive in detecting fabric penetration. CPC garments have been improved since this study was conducted, but performance testing under field conditions is not widespread. Workers conducting airblast applications would be better protected by closed cab systems or any technology that places an effective barrier between the worker and the pesticide spray
Keywords
Pesticides; Protective-clothing; Spraying-equipment; Sprays; Pest-control; Pesticide-residues; Exposure-levels; Exposure-limits; Exposure-methods; Organo-phosphorus-compounds; Organo-phosphorus-pesticides; Insecticides; Air-contamination; Air-pressure; Air-purifiers; Author Keywords: Pesticides; Protective clothing; Orchard sprayers; Application; Pest control; Dermal exposure; Fluorescent tracers
Contact
R. A. Fenske, Pacific Northwest Agricultural Safety and Health Center, Department of Environmental Health, University of Washington, Seattle 98195
CODEN
JASHFD
Publication Date
20020801
Document Type
Journal Article
Email Address
rfenske@u.washington.edu
Funding Amount
868583
Funding Type
Cooperative Agreement
Fiscal Year
2002
NTIS Accession No.
NTIS Price
Identifying No.
Cooperative-Agreement-Number-U07-CCU-012926
Issue of Publication
3
ISSN
1074-7583
Priority Area
Neurotoxic Disorders; Neurotoxic-effects
Source Name
Journal of Agricultural Safety and Health
State
WA; NJ
Performing Organization
University of Washington, Seattle, Washington
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