상추 중 Lambda-cyhalothrin과 Deltamethrin의 잔류 특성 (Residual Characteristics of Lambda-cyhalothrin and Deltamethrin in Lettuce)

서지정보

· 발행기관 : 한국농약과학회
· 수록지 정보 : 농약과학회지 / 12권 / 2호 / 148 ~ 154페이지
· 저자명 : 윤상순, 경기성, 심석원, 김광일, 안명수, 윤택한, 김윤정, 황효선, 진충우, 한상국, 오상균, 신종호, 진용덕, 이은영

초록

This study was carried out to investigate the residue patterns of two insecticides, lambda-cyhalothrin and deltamethrin, commonly used for lettuce, under greenhouse conditions. The pesticides were sprayed with dilution of recommended and doubled doses onto lettuce. Their detection limits were 0.001 mg･kg-1 and mean recoveries at the fortification levels of 0.2 and 1.0 mg･kg-1 were from 101.17 to 104.25 and from 99.70 to 103.77%, respectively. The pesticides were gradually decreased in lettuce with time. Biological half-lives of lambda-cyhalothrin and deltamethrin were 1.7 and 1.4 days at the recommended dose and 1.8 and 1.4 days at the doubled dose, respectively. Initial residue amounts of lambda-cyhalothrin and deltamethrin at the recommended and doubled doses exceeded their MRLs. However, the residue levels of the pesticides in the crop sampled at harvest were less than their MRLs. The ratios of the estimated daily intake (EDI) to acceptable daily intake (ADI) by intake the crop harvested 10 days after spraying were less than 1% of their ADIs.

영어초록

This study was carried out to investigate the residue patterns of two insecticides, lambda-cyhalothrin and deltamethrin, commonly used for lettuce, under greenhouse conditions. The pesticides were sprayed with dilution of recommended and doubled doses onto lettuce. Their detection limits were 0.001 mg･kg-1 and mean recoveries at the fortification levels of 0.2 and 1.0 mg･kg-1 were from 101.17 to 104.25 and from 99.70 to 103.77%, respectively. The pesticides were gradually decreased in lettuce with time. Biological half-lives of lambda-cyhalothrin and deltamethrin were 1.7 and 1.4 days at the recommended dose and 1.8 and 1.4 days at the doubled dose, respectively. Initial residue amounts of lambda-cyhalothrin and deltamethrin at the recommended and doubled doses exceeded their MRLs. However, the residue levels of the pesticides in the crop sampled at harvest were less than their MRLs. The ratios of the estimated daily intake (EDI) to acceptable daily intake (ADI) by intake the crop harvested 10 days after spraying were less than 1% of their ADIs.

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