Methodology for Quantitative Monitoring of Agricultural Worker Exposure to Pesticides

농작업자에 대한 농약 노출의 정량적 측정 방법

  • Kim, Eun-Hye (Department of Agricultural Biotechnology, Seoul National University) ;
  • Lee, Hye-Ri (Department of Agricultural Biotechnology, Seoul National University) ;
  • Choi, Hoon (National Institute of Food and Drug Safety Evaluation) ;
  • Moon, Joon-Kwan (School of Plant, Life and Environmental Sciences, Hankyong National University) ;
  • Hong, Soon-Sung (National Institute of Agricultural Science and Technology) ;
  • Jeong, Mi-Hye (National Institute of Agricultural Science and Technology) ;
  • Park, Kyung-Hun (National Institute of Agricultural Science and Technology) ;
  • Lee, Hyo-Min (Risk Information Division, Risk Prevention Policy Bureau, Korea Food and Drug Administration) ;
  • Kim, Jeong-Han (Department of Agricultural Biotechnology, Seoul National University)
  • 김은혜 (서울대학교 농생명공학부) ;
  • 이혜리 (서울대학교 농생명공학부) ;
  • 최훈 (식품의약품안전청 식품의약품평가원) ;
  • 문준관 (한경대학교 식물생명환경과학부) ;
  • 홍순성 (농촌진흥청 농업과학기술원) ;
  • 정미혜 (농촌진흥청 농업과학기술원) ;
  • 박경훈 (농촌진흥청 농업과학기술원) ;
  • 이효민 (식품의약품안전청 위해예방정책국) ;
  • 김정한 (서울대학교 농생명공학부)
  • Received : 2011.09.28
  • Accepted : 2011.10.25
  • Published : 2011.12.31

Abstract

Agricultural workers who mix/loads and spray pesticide in fields expose to pesticide through dermal and inhalation routes. In such situation, exposed amount should be measured quantitatively for reasonable risk assessment. Patch, gloves, socks and mask will be good materials for monitoring for dermal exposure while personal air monitor equipped with solid adsorbent and air pump will be a tool for inhalation exposure. For extrapolation of absorbed amount in dermal exposure matrices and of trapped amount in solid sorbent to total deraml or inhalation exposure, Korean standard body surface area and respiration rate were proposed in substitution of EPA data. Important exposure factors such as clothing and skin penetration ratio of dermal and inhalation exposure were suggested based on Spraying time for exposure monitoring must be long enough that the amount of pesticide to get absorbed/trapped in exposure matrices results in reasonable analytical value. In domestic case for the both of speed sprayer and power spray machine, spraying time of 20~40 minutes (0.1~0.2 ha) will be reasonable per single replicate before extrapolating to 4 hours a day with triplicates experiment.

포장에서 농약 살포액의 조제, 살포 등의 작업을 수행하는 농작업자는 피부노출, 호흡노출경로를 통해 농약에 노출되며, 이러한 상황에서의 농약 노출에 대한 합리적인 위해성 평가를 위해서는 해당 영농상황에서 노출량을 정량적으로 측정해야 한다. 농약 노출 측정방법으로 patch, 장갑, 양말, 마스크를 이용하는 방법과 호흡 노출은 주로 고체흡착제와 공기흡입펌프가 연결된 personal air monitor를 사용하는 것이 좋을 것으로 판단된다. 이 농작업자의 정량적 피부 노출 측정법으로 유효할 것으로 판단된다. 노출 재료에 침착/부착된 농약량이나 고체흡착제에 포집된 농약량을 신체 전체에 대한 농약 노출량으로 외삽하기 위한 EPA 자료를 대체할 수 있도록 한국 사람의 표준 신체표면적 및 호흡률을 제안하였다. 중요한 노출 인자인 피부노출의 의복 침투율과 피부 침투율, 그리고 호흡노출의 침투율을 UK-POEM과 관련된 연구결과를 참고하여 다양하게 제안하였다. 노출 평가를 위한 살포 시간은 노출 측정 재료에 침착된 농약이 분석이 될 만큼 충분한 농약이 포집될 수 있도록 살포시간이 충분해야 하는데, 국내의 SS기나 동력분무기의 경우는 1반복 당 모두 약 20~40분에 살포(약 0.1~0.2 ha)로 해서 3반복 측정 결과를 4시간으로 환산할 것을 제안하였다.

Keywords

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