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Change of Residual Deltamethrin Sprayed in the Stream Water according to Wind Speed and Diffusion

풍속 및 수중확산에 따른 방역용 Deltamethrin의 수중 잔류변화

  • Cho, Kyung-Won (Agricultural Research Center, Hankooksamgong Co. Ltd.) ;
  • Pak, Jae-Hun (Department of Biological Environment and Chemistry, Chungnam National University) ;
  • Lim, Jong-Sung (Sungbo Chemiscals Co. Ltd.) ;
  • Yoon, Ji-Yeong (Department of Biological Environment and Chemistry, Chungnam National University) ;
  • Moon, Hye-Ree (Department of Biological Environment and Chemistry, Chungnam National University) ;
  • Lee, Yong-Ju (Environmental Toxicology Research Center, Korea Institute of Toxicology) ;
  • Lee, Sung-Kyu (Environmental Toxicology Research Center, Korea Institute of Toxicology) ;
  • Lee, Kyu-Seung (Department of Biological Environment and Chemistry, Chungnam National University)
  • 조경원 (한국삼공(주) 농업연구소) ;
  • 박재훈 (충남대학교 생물환경화학과) ;
  • 임종성 (성보화학(주) 연구소) ;
  • 윤지영 (충남대학교 생물환경화학과) ;
  • 문혜리 (충남대학교 생물환경화학과) ;
  • 이용주 (한국안전성평가연구소 환경독성연구센터) ;
  • 이성규 (한국안전성평가연구소 환경독성연구센터) ;
  • 이규승 (충남대학교 생물환경화학과)
  • Received : 2013.02.20
  • Accepted : 2013.05.21
  • Published : 2013.08.30

Abstract

The objectives of this study were to provide the basic data of the residue of deltamethrin in the stream water. Deltamethrin was treated on side of Ban-Suk stream and Juk-Dong ditch for hygienic purpose by air spray. The drift concentration of deltamethrin was investigated with different wind speed condition on Ban-Suk stream (A), and the change of residue with time course on Juck-dong ford (B). Also we found the residual change of deltamethrin until 48 hour in Yu-Seong stream confluence (C) where two streams join. Maximum residues of A were $0.17{\mu}g/L$ (5 min, 200 m) at strong wind speed and $4.42{\mu}g/L$ (0 min, 25 m) at moderate wind speed according to different wind velocity. Residues of B were $0.15{\sim}0.26{\mu}g/L$ (0~480 min) after spraying, and decreased to a non-detected level after 720 min. Residues of C were $0.15{\mu}g/L$ (0 min), $0.11{\mu}g/L$ (1 min) and $0.10{\mu}g/L$ (12 hr) after spraying, and no residues were detected in any other samples. From these results, it is concluded that deltamethrin residues in water should be rapidly diluted into stream water and affected negligible toxic effect to stream ecosystem.

Acknowledgement

Grant : 방역용 살충제의 환경 중 추정농도 계산을 위한 한국형 모델 개발

Supported by : 식품의약품안전평가원

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