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Distribution Characteristics of Pesticide Residues in the Portions of Lettuce Leaves

상추 잎의 부위별 잔류농약 분포 특성

  • Kwon, Sun-Mok (Guri Agricultural Products Inspection Team, Gyeonggi-do Institute of Health and Environment) ;
  • Choi, Ok-Kyung (Guri Agricultural Products Inspection Team, Gyeonggi-do Institute of Health and Environment) ;
  • Kim, Ki-Cheol (Guri Agricultural Products Inspection Team, Gyeonggi-do Institute of Health and Environment) ;
  • Kim, Jung-Beom (Guri Agricultural Products Inspection Team, Gyeonggi-do Institute of Health and Environment) ;
  • Kang, Heung-Gyu (Guri Agricultural Products Inspection Team, Gyeonggi-do Institute of Health and Environment) ;
  • Cho, Yun-Sik (Guri Agricultural Products Inspection Team, Gyeonggi-do Institute of Health and Environment) ;
  • Ha, Jin-Ok (Guri Agricultural Products Inspection Team, Gyeonggi-do Institute of Health and Environment) ;
  • Jang, Jin-Ho (Guri Agricultural Products Inspection Team, Gyeonggi-do Institute of Health and Environment) ;
  • Lee, Byoung-Hun (Guri Agricultural Products Inspection Team, Gyeonggi-do Institute of Health and Environment) ;
  • Lee, Sung-Nam (Guri Agricultural Products Inspection Team, Gyeonggi-do Institute of Health and Environment) ;
  • Lee, Sun-Young (Guri Agricultural Products Inspection Team, Gyeonggi-do Institute of Health and Environment) ;
  • Kang, Suk-Ho (Guri Agricultural Products Inspection Team, Gyeonggi-do Institute of Health and Environment) ;
  • Lee, Jong-Bok (Guri Agricultural Products Inspection Team, Gyeonggi-do Institute of Health and Environment)
  • 권순목 (경기도보건환경연구원 구리농산물검사소) ;
  • 최옥경 (경기도보건환경연구원 구리농산물검사소) ;
  • 김기철 (경기도보건환경연구원 구리농산물검사소) ;
  • 김중범 (경기도보건환경연구원 구리농산물검사소) ;
  • 강흥규 (경기도보건환경연구원 구리농산물검사소) ;
  • 조윤식 (경기도보건환경연구원 구리농산물검사소) ;
  • 하진옥 (경기도보건환경연구원 구리농산물검사소) ;
  • 장진호 (경기도보건환경연구원 구리농산물검사소) ;
  • 이병훈 (경기도보건환경연구원 구리농산물검사소) ;
  • 이성남 (경기도보건환경연구원 구리농산물검사소) ;
  • 이선영 (경기도보건환경연구원 구리농산물검사소) ;
  • 강석호 (경기도보건환경연구원 구리농산물검사소) ;
  • 이정복 (경기도보건환경연구원 구리농산물검사소)
  • Received : 2014.04.28
  • Accepted : 2014.06.03
  • Published : 2014.06.30

Abstract

This study was conducted to investigate the changes of the residual amount in the leafstalk (end) and the fore-end (upper) portion of lettuce leaves during cultivation period to 14 days, 12 times in total (0, 1, 2, 3, 4, 5, 7, 8, 10, 12, 13 and 14 days) after spraying with boscalid and lufenuron. In the case of boscalid, the initial concentrations at 3 hours (0 day) of the leafstalk and the fore-end portion of lettuce leaves were 18.26 mg/kg and 84.97 mg/kg, respectively and the residual amounts were rapidly decreased to 0.31 mg/kg and 0.37 mg/kg at 14 days after chemical application. In the case of lufenuron, the initial concentrations at 3 hours (0 day) of the leafstalk and the fore-end portion of lettuce leaves were 0.91 mg/kg and 5.21 mg/kg, respectively and the residual amounts were rapidly decreased to 0.06 mg/kg and 0.09 mg/kg at 13 days after chemical application. The variations of the residual concentrations analyzing 12 times after spraying showed that the residual amounts of the leafstalk portion of lettuce leaves were less than its fore-end portion in boscalid and lufenuron. In additon, 9 kinds of pesticide including boscalid in 16 lettuce leaf (found to contain pesticide in 2013) showed that the residual amounts of the leafstalk portion of lettuce leaves were less than its fore-end portion as well.

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