Effect of exposure time on the sorption of pesticide emulsifiable concentrates through microporous fabrics

• Published in: Bulletin of environmental contamination and toxicology Vol. 46; no. 1; pp. 45 - 52
• Main Authors: ANUGRAH SHAW, HILL, K. R
• Format: Journal Article
• Language: English
• Published: New York, NY Springer-Verlag 1991
• Subjects: Acrylates - analysis; Adsorption; Biological and medical sciences; Medical sciences; Nylons - analysis; Pesticides - analysis; Pesticides, fertilizers and other agrochemicals toxicology; Polyesters - analysis; Protective Clothing; Time Factors; Toxicology; Human; Safety clothing; Absorption; Exposure time; Pesticides
• ISSN: 0007-4861; 1432-0800
• DOI: 10.1007/BF01688253

Pesticide sorption through microporous fabrics was studied at different exposure times from a method validation perspective. Exposure time is defined as the contact time between pesticide application and removal of excess pesticide to simulate rolling off of pesticide concentrate from a water-repellent fabric. Water repellent-finished and laminated acrylic, polyester, and nylon fabrics, as well as commercial three-layer Gore Tex fabric, were subjected to two pesticides at four exposure times. The percent of pesticide sorbed was least when excess chemical was removed immediately after application. In all fabrics, except for commercial polyester, there was no marked difference among the other three exposure times.