- Author
- Shaw, A. | Nomula, R. | Patel, B.
- Title
- Protective Clothing and Application Control for Pesticide Applicators in India: A Field Study.
- Coporate
- Maryland Eastern Shore Univ., Princess Anne, MD DuPont India, Gujarat, India
- Report
- ASTM STP 1386,
- Book or Conf
- Performance of Protective Clothing: Issues and Priorities for the 21st Century. Proceedings. Seventh (7th) Volume. American Society for Testing and Materials (ASTM). ASTM STP 1386. June 28-30, 1999, ASTM, West Conshohocken, PA, Seattle, WA, Nelson, C. N.; Henry, N. W., Editors, 342-353 p., 2000
- Keywords
- protective clothing | protective equipment | pesticides | effectiveness | garments | exposure | fluorochemical finish | field tests | cotton fabrics | chlorpyrifos | valves
- Identifiers
- Personal Protective Equipment (PPE); India; constant flow valve (CVC); knapsack sprayer; characteristics of cotton twill weave fabric with and without finish; crop and weather conditions; constant flow valve
- Abstract
- The objectives of the study were to determine the effectiveness of a) water-repellent cotton garments and b) constant flow valve (CFV) in reducing pesticide exposure of applicators using knapsack sprayers. Fluorochemical finish was applied to cotton fabrics suitable for a) pants and shirt and b) kurta and pajama (traditional garment worn by males in India). Based on the pre-study results, a modified pants and shirt design was selected for the field trials. Eight pesticide applicators wore garments with and without finish during two spraying sessions. Field-strength chlorpyrifos was applied to red gram crop using a) knapsack sprayer and b) knapsack sprayer retrofitted with a CFV. A cotton knit collector layer was worn under the garments to assess the penetration of the pesticide through the fabric. The cotton garments and knit collector layers were extracted in acetone and analyzed using gas chromatography. Results indicate that cotton twill fabrics with the finish were more effective in reducing the amount of chlorpyrifos absorbed by the cover garment as well as the amount that penetrated through the garment when spills occurred. CFV was effective in reducing pesticide exposure of applicators using knapsack sprayers.