US EPA

1990143 

Journal Article 

Fluorescent tracer and pesticide penetration through selected protective clothing 

Archibald, BA; Solomon, KR; Stephenson, GR 

1994 

Yes 

Bulletin of Environmental Contamination and Toxicology
ISSN: 0007-4861
EISSN: 1432-0800 

53 

4 

479-485 

English 

8000173 

The permeability and penetration of pesticides combined with tracers through various types of protective clothing were studied using an improved Video Imaging Technique for Assessing Exposure (VITAE). Rubber, tyvek, cotton, cotton/polyester blend, and nylon clothing materials were tested. Material samples covering alpha-cellulose patches were sprayed with one of three tracer/pesticide mixtures at one of three rates and the outer samples and inner patches were analyzed for tracer and pesticide. Constant deposition ratios relative to initial mixtures were seen when the tracer was dissolved in an oil emulsifier prior to mixing with water and pesticide. No evidence of tracer or pesticide was seen in any of the patches placed below the rubber or tyvek samples. Trace levels were found on four tyvek samples treated with deltamethrin (52918635) tracer solutions and one tyvek patch treated with an endosulfan (115297) tracer solution. Only a small amount of deltamethrin residue was found beneath the blended material and none was seen beneath the cotton sample. A relatively constant penetration ratio for deltamethrin/tracer was seen for the blended material and the penetration ratios for pirimicarb (23103982) tracer were inconsistent. The amount of tracer which penetrated all three materials was much lower when applied with pirimicarb compared with the other two pesticides. The authors conclude that these results do not support the hypothesis that penetration ratios of pesticide plus tracer remain consistent in different types of protective clothing.