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살균제 Procymidone의 토양 중 동태

Behaviors of the Fungicide Procymidone in Soils

  • 최규일 (국립농산물품질관리원 시험연구소 안전성분석과) ;
  • 성기용 (국립농산물품질관리원 시험연구소 안전성분석과) ;
  • 김정규 (고려대학교 생명환경과학대학 환경생태공학부)
  • Choi, Gyu-Il (National Agricultural Products Quality Management Service, Research & Experiment Institute, NAQS) ;
  • Seong, Ki-Yong (National Agricultural Products Quality Management Service, Research & Experiment Institute, NAQS) ;
  • Kim, Jeong-Gyu (Division of Environmental Sciences and Ecological Engineering, College of Life and Environmental Sciences, Korea University)
  • 발행 : 2005.06.30

초록

살균제 procymidone의 토양 중 행적에 관한 흡 탈착, 용탈실험과 광분해 및 가수분해 실험을 통한 농업환경 중 동태를 구명코자 하였으며, 그 결과는 다음과 같다. 흡착은 직선식과 Freundlich식에 부합하였고, 분배계수는 $2.75{\sim}12.18$, Kf값은 $1.99{\sim}9.98$로 토양유기물 함량에 비례하였다. 토양별 탈착율은 백산>지곡>남계통의 순서로 높게 나타났다. 자연광 하에서의 광분해는 느려 자연광에 의한 직접적인 분해는 적을 것으로 사료되었으며, 용탈 이동성은 낮아 Macall총설 및 SSLRC 이동성 분류에 따라 low class에 속했고 특히 유기물 함량이 높은 남계통은 2주 경과후에도 농약이 용탈되지 않았다. 가수분해 실험결과 procymidone은 산성 및 중성보다 알칼리 조건에서 가수분해가 빨랐으며, 높은 온도에서 분해가 빨랐다. 이상의 결과 procymidone은 토양환경에서 흡착량이 높고 이동성이 낮아 타 환경계로의 전이 정도는 매우 낮다고 평가되었다.

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피인용 문헌

  1. Reduction in Residual Pesticides and Quercetin Yields in Onion Peel Extracts by Washing vol.22, pp.12, 2012, https://doi.org/10.5352/JLS.2012.22.12.1665