벼 재배지 농작업자에 대한 clothianidin의 노출 및 위해성 평가 (Exposure and Risk Assessment of Clothianidin for Agricultural Worker during Spraying onto Rice-growing Paddy Field)

서지정보

· 발행기관 : 한국농약과학회
· 수록지 정보 : 농약과학회지 / 21권 / 3호 / 332 ~ 340페이지
· 저자명 : 노현호, 박효경, 이정우, 진미지, 조승현, 이재윤, 박경훈, 경기성

초록

전신복장법을 이용하여 벼 재배지 농약 살포자의 농약 노출 특성을 구명하고 위해성을 평가하기 위하여 이연구를 수행하였다. 시험농약은 clothianidin+flubendiamide 6 (2+4)% 액상수화제이었으며, 2,000배 희석액 1,000 L 를 각 1 ha 면적의 11개 포장에 power sprayer를 이용하여 11명이 각각 살포한 후 신체 부위별 시료를 채취하여 LCMS/ MS로 잔류농약을 분석하였다. 시험농약의 정량한계는 0.002 ng이었으며, 회수율은 72.9-113.3%이었다. 잔류농약 분석 결과 총 노출량은 1450.71-4429.38 μg이었으며, 총 검출량은 11개 포장 모두 살포량 대비 0.03%이었다. 또한 다리(63.49%)에 가장 많은 농약이 노출되었으며, 몸통과 엉덩이(30.30%), 팔(5.66%), 손(0.5%), 호흡(0.03%), 머리(0.01%) 순으로 노출량이 적었다. 노출량을 바탕으로 산출한 clothianidin의 안전한계는 153-466으로 power sprayer를 이용하여 clothianidin를 벼에 살포할 경우 살포자에 대한 위해도는 매우 낮았다.

영어초록

This study was carried out to evaluate exposure characteristics of clothianidin for paddy field workers during spraying the pesticide onto rice plants and evaluate its potential risk using a whole body dosimetry. Commercial clothianidin+flubendiamide 6(2+4)% SC was diluted 2,000 times and then that was sprayed separately onto eleven rice-growing paddy fields (1 ha per field) at a rate of 1,000 L/ha with power sprayer by eleven workers. Pesticide residues in samples, such as outer/inner clothes, gauze, glass fiber filter and washing solution, were analyzed with an LC-MS/MS after collecting samples. Limit of quantitation of clothianidin was 0.002 ng and mean recoveries found to be 72.4-105.3% in all samples. Total exposure of the pesticide to sprayers were 1450.71-4429.38 μg and those were less than 0.03% of total pesticide sprayed in each field. The highest exposure in body parts found in legs (63.49% of the total application). The amount of exposure in trunk and hip, arm, hands, inhalation and head were 30.30, 5.66, 0.50, 0.33 and 0.01% of total application, respectively. Margin of safety of the test pesticide calculated using the amount of the pesticide exposed found to be 153-466, indicating that exposure risk of clothianidin to paddy field sprayer applied by a power sprayer was very low.

참고자료

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