A Development on Assessment Method of PVC Gloves Used in Pest Control Program

해충제어프로그램에서 사용되는 PVC장갑의 평가방법 개발

  • Lee, Su-Gil (Department of Public Health, University of Adelaide) ;
  • Lee, Nae-Woo (Division of Safety Engineering, Pukyong National University)
  • 이수길 (아델라이드 대학교 공중보건학과) ;
  • 이내우 (부경대학교 안전공학부)
  • Published : 2006.06.30

Abstract

Following a Mediterranean fruit fly outbreak in South Australia, a bait spray program involving the pesticides like malathion(MAL) was carried out. During the application, dermal exposure was considered for the pest controllers wearing PVC gloves. However there is a lack of information about PVC glove performance like break through times and permeation rates with MAL, therefore, a new analytical method for HPLC-UV was developed. A standard permeation test cell was used in this study. From the results of this study, more than 96% solubility of MAL was provided at 30% isopropyl alcohol in distilled water as a collecting media. However, there was significant decomposition of MAL when the solutions were kept at over $50^{\circ}C$ for 2-3 hours. As a mobile phase, 50% acetonitrile water solution (pH 6.0) gave the greater sensitivity compared with other compositions of acetonitrile solution. The arm section of the gloves had shorter breakthrough times and higher permeation rates compared with the palm. There was no malathion solution breakthrough up to 24 hours using the 1% MAL working strength solution. When the temperature was changed from $22{\pm}1^{\circ}C\;to\;37{\pm}1^{\circ}C$, the breakthrough times were decreased by 14.5% on palm and 37.5% on arm, and permeation rates were increased significantly. The findings of this study indicate that further investigations on used gloves, periods of use and varying working conditions like tasks and seasons should be carried out to assess potential worst case scenarios.

Keywords

breakthrough time;fruit fly;glove performance;malathion;permeation rate;PVC glove

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