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Pesticide-Originated Persistent Organic Pollutants in Agricultural Waterways in Chungcheong Province, Korea

충청지역 농업용수 중 농약 유래 POPs의 모니터링 연구

  • Lee, Hwa-Sung (Quality Control Department, Korea Good Herbs Distribution Center) ;
  • Jeon, Hwang-Ju (School of Applied Biosciences, Kyungpook National University) ;
  • Lee, Hoi-Seon (Department of Bioenvironmental Chemistry, College of Agriculture & Life Science, Chonbuk National University) ;
  • Lee, Sung-Eun (School of Applied Biosciences, Kyungpook National University)
  • Received : 2015.08.04
  • Accepted : 2015.08.13
  • Published : 2015.12.31

Abstract

Persistent organic pollutants (POPs) including banned organochlorine pesticides, are found in Korean agricultural environments. Their translocation from agricultural environment to major crops has been reported. In this study, the POPs in 15 different agricultural waters of the Chungchung Province were monitored and all samples were prepared, followed by liquid-liquid fractionation and column chromatography prior to analysis using gas chromatography. Among pesticide-originated persistent organic pollutants, ${\alpha}$-endosulfan was determined in the range of 0.01 to 1.13 ng/mL. ${\beta}$-Endosulfan was determined in the range of 0.01 to 0.55 ng/mL, and endosulfan sulfate was ranged from 0.13 to 1.13 ng/mL. The total sum of endosulfans reached the range of 0.38 to 1.18 ng/mL. Three pesticides being used currently were also found in samples as 2.03-2.05 ng/mL for triadimefon, 0.26-0.33 ng/mL for tolyfluanid, and 1.34-3.85 ng/mL for chlorpyrifos. Taken together, endosulfans were introduced in the agricultural waters and their fates need continuous monitoring.

잔류성유기오염물질(POPs)은 현재 사용이 금지된 유기염소계 농약을 포함하고 이들은 국내 농업환경 중 발견이 되며 이들의 작물로의 이동 또한 보고되고 있다. 본 연구는 충청도 지역 15곳의 농업용수를 채취하여 이들 시료 중 POPs를 모니터링 하고자 하였으며 이들 시료는 액액분배를 통한 추출 및 정제컬럼을 이용한 정제과정을 거쳐 기체크로마토그래피에 의하여 분석되었다. 농약유래 POPs 중 ${\alpha}$-endosulfan이 0.01-1.13 ng/mL 수준에서 검출되었으며, ${\beta}$-endosulfan과 endosulfan sulfate는 각각 0.01-0.55 ng/mL 및 0.13-1.13 ng/mL 수준에서 검출되었다. 총 endosulfan 검출량은 0.38-1.18 ng/mL이었다. 현재 사용중인 농약 중 triadimefon 은 2.03-2.05 ng/mL 수준에서, tolyfluanid은 0.26-0.33 ng/mL 수준에서, chlorpyrifos는 1.34-3.85 ng/mL 수준에서 검출되었다. 농약계 POPs 중 endosulfan류의 물질들의 잔류가 확인되었고 이들의 환경 중 지속적인 모니터링이 필요하다.

Keywords

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