Permethrin transfer from treated cloth to the skin surface: Potential for exposure in humans

Snodgrass, HL

HERO ID

1060570

Reference Type

Journal Article

Year

1992

Language

English

PMID

1542137

HERO ID 1060570
In Press No
Year 1992
Title Permethrin transfer from treated cloth to the skin surface: Potential for exposure in humans
Authors Snodgrass, HL
Journal Journal of Toxicology and Environmental Health
Volume 35
Issue 2
Page Numbers 91-105
Abstract Permethrin is an agricultural insecticide of great interest to the military because of its repellency toward disease-bearing insects when impregnated into uniforms. However, migration of the substance from clothing to the skin surface is of toxicological importance. To quantitate leaching from treated clothing, studies were performed in which swatches of fabric impregnated with 14C-labeled permethrin were applied to the backs of rabbits for 1 wk. Permethrin migration was quantitated by measuring the fate of the 14C label. Conditions that could affect leaching and/or absorption were also evaluated, that is, varying environments, the presence of sweat, different fabric types, and the effects of prelaundering. Results showed that fabric treated with permethrin at a rate of 0.125 mg/cm2 lost the substance to the skin surface at an average rate of 0.49%/d. At the end of the 7-d exposures in rabbits, about 3.2% of the available permethrin had reached the skin, 2% having been recovered from excreta (absorbed) and 1.2% remaining on the skin surface. Prelaundering the treated fabric had little effect on migration rate, nor did the other variables tested. Exposure dose to humans from wearing permethrin-treated (0.125 mg/cm2) military clothing is predicted to be 6 x 10(-4) mg/kg/d.
Doi 10.1080/15287399209531598
Pmid 1542137
Wosid WOS:A1992HD58500002
Is Certified Translation No
Dupe Override No
Is Public Yes
Language Text English