Korean Journal of Environmental Agriculture (한국환경농학회지)

The Korean Society of Environmental Agriculture (한국환경농학회)
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Residual Characteristics and Monitoring of Cyenopyrafen and Cyflumetofen in Strawberries for Export

수출딸기 중 Cyenopyrafen과 Cyflumetofen의 잔류소실 특성평가 및 잔류농약 모니터링

  • Kim, Yeong-Jin (Environmental Toxicology Research Center, Department of Gyeongnam Environmental Toxicology and Chemistry, Korea Institute of Toxicology) ;
  • Kim, Jong-Hwan (Environmental Toxicology Research Center, Department of Gyeongnam Environmental Toxicology and Chemistry, Korea Institute of Toxicology) ;
  • Kwon, Young-Sang (Environmental Toxicology Research Center, Department of Gyeongnam Environmental Toxicology and Chemistry, Korea Institute of Toxicology) ;
  • Song, Jong-Wook (Environmental Toxicology Research Center, Department of Gyeongnam Environmental Toxicology and Chemistry, Korea Institute of Toxicology) ;
  • Seo, Jong-Su (Environmental Toxicology Research Center, Department of Gyeongnam Environmental Toxicology and Chemistry, Korea Institute of Toxicology)
  • 김영진 (안전성평가연구소 경남환경독성본부 환경독성연구센터) ;
  • 김종환 (안전성평가연구소 경남환경독성본부 환경독성연구센터) ;
  • 권영상 (안전성평가연구소 경남환경독성본부 환경독성연구센터) ;
  • 송종욱 (안전성평가연구소 경남환경독성본부 환경독성연구센터) ;
  • 서종수 (안전성평가연구소 경남환경독성본부 환경독성연구센터)
  • Received : 2017.10.19
  • Accepted : 2017.11.22
  • Published : 2017.12.31
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Abstract

BACKGROUND: Many farmers who cultivate the strawberries for export have used agricultural chemicals which MRL (Maximum Residue Limits) of main export target countries or simultaneous multi-residue analysis in Korea have not been established. Among them, the cyenopyrafen and cyflumetofen were selected and applied to this study to determine the PHI (pre-harvest interval) which is appropriate to the PLS (Positive List System) criterion (0.01 mg/kg) and to investigate the residual amounts in the samples. In addition, Fifty pesticides were monitored to check up whether it is suitable or not for main export target countries. METHODS AND RESULTS: Cyenopyrafen and cyflumetofen were spayed out to the strawberries. Samples for residual analyses were taken for maximum 60 days. After sampling, they were extracted by the QuEChERS method and analyzed using the LC-MS/MS. Cyenopyrafen and cyflumetofen were detected in a range of 0.0106~2.6517 mg/kg and of 0.0005~1.4480 mg/kg, respectively. From this results, they were found to be suitable for PLS concentration after 30 or 45 days after spray. In addition, they were detected in most samples that were selected at random. Their concentrations were higher than the PLS criterion in the maximum twenty samples. Twelve of pesticides unsuitable for main export target countries have been detected in the monitoring of simultaneous multi-residue analysis. The result indicates they are unsuitable for export since they excesses over PLS criterion. CONCLUSION: The monitoring result showed it is necessary to establish the pesticide standards of safe use suitable for the PLS criterion. In addition, it is considered continues management and inspection are needed to solve problems caused by unsuitable pesticides in export strawberries.

본 연구에서는 국내 320종 다성분 동시분석법에 적용되지 있지 않으면서 실제 수출딸기의 농가에서 많이 사용하고 있는 cyenopyrafen과 cyflumetofen의 잔류농약 소실특성과 실제 수출딸기의 잔류농도를 확인하기 위해 수행하였다. 각 농약은 살포 후, 5일과 1일 이후에 국내 MRL 기준이하로 검출되었지만 cyenopyrafen는 30일, cyflumetofen는 45일 이후부터 PLS 기준 이하로 검출되는 것으로 확인하였다. 따라서, 해당농약의 잔류허용기준이 설정되어있지 않은 국가에 수출할 경우에는 살포 후 30일 또는 45일 경과 후에 수확하는 것이 바람직한 할 것으로 보인다. 또한 2016년과 2017년에 총 40농가에의 수출딸기를 무작위로 채취하여 분석한 결과, cyenopyrafen은 21농가, cyflumetofen은 10농가에서 주요 수출대상국의 PLS 기준을 초과하는 것으로 확인되었다. 수출딸기의 재배에 많이 사용되는 52종의 농약성분을 2016년과 2017년에 총 40농가에서 시료를 채취하여 동시다 성분 분석으로 모니터링 한 결과, 12종의 농약성분이 국내주요수출 국가인 홍콩과 싱가포르의 잔류허용기준에 부적합한 것으로 확인하였다. 그러므로, 추후 수출딸기의 잔류농약에 대한 안전성 및 신뢰성문제가 야기될 소지가 있기 때문에 각 농가와 각 부처의 각별한 주의와 지속적인 지원 및 모니터링이 필요할 것으로 사료된다.

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References

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