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Permeation of Comite through protective gloves.
Hanaa Zainal1, Shane S Que Hee
1Department of Environmental Health Sciences, UCLA Center for Occupational and Environmental Health, School of Public Health, University of California at Los Angeles, 650 Charles Young Jr Drive South, Los Angeles, CA 90095-1772, USA.
Journal of Hazardous Materials
|May 23, 2006
Summary
Sol-Vex nitrile gloves offer superior protection against propargite (PROP) pesticide compared to Safeskin gloves. Sol-Vex provided 56 times more protection over 8 hours, while Safeskin offered limited protection for diluted pesticide exposure.
Area of Science:
- Occupational Health
- Toxicology
- Materials Science
Background:
- Lack of explicit glove recommendations for handling propargite (PROP) pesticide formulations.
- Need to assess protective efficacy of commonly used nitrile gloves against pesticide exposure.
Purpose of the Study:
- To evaluate the protective capabilities of disposable (Safeskin) and chemical-resistant (Sol-Vex) nitrile gloves against a propargite (PROP) emulsifiable concentrate.
- To determine safe usage times for these gloves during pesticide handling.
Main Methods:
- Glove permeation testing using ASTM-type I-PTC-600 cells at 30°C.
- Analysis of propargite (PROP) permeation using gas chromatography-mass spectrometry.
- Exposure of gloves to both diluted and undiluted Comite formulations.
Main Results:
- Sol-Vex gloves showed significantly lower PROP permeation (3.17 μg) compared to Safeskin gloves (176 μg) over 8 hours when exposed to diluted Comite.
- Safeskin gloves offered approximately 200 minutes of protection against diluted Comite, but no protection against the undiluted formulation.
- Sol-Vex gloves provided adequate protection for 2.7 hours against undiluted Comite and nearly 8 hours against diluted Comite.
Conclusions:
- Sol-Vex nitrile gloves are substantially more protective against propargite (PROP) than Safeskin gloves.
- Glove selection is critical for safe handling of propargite formulations, with Sol-Vex recommended for extended or undiluted exposure.
- Neither glove type showed degradation, indicating permeation is the primary failure mechanism.