Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

Korean Society of Soil Science and Fertilizer (한국토양비료학회)
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Evaluating Ecotoxicity of Surface Water and Soil Adjacent to Abandoned Metal Mines with Daphnia magna and Eisenia fetida

  • Kim, Dae-Bok (Department of Bio-Environmental Chemistry, Chungnam National University) ;
  • Choi, Won-Suk (Department of Bio-Environmental Chemistry, Chungnam National University) ;
  • Hong, Young-Kyu (Department of Bio-Environmental Chemistry, Chungnam National University) ;
  • Kim, Soon-Oh (Department of geology, Gyeongsang National University) ;
  • Lee, Sang-Woo (Department of geology, Gyeongsang National University) ;
  • Lee, Byung-Tae (School of Environmental Science and Engineering, Gwangju Institute of Science and Technology) ;
  • Lee, Sang-Hwan (Mine Reclamation Corporation) ;
  • Park, Mi-Jung (Mine Reclamation Corporation) ;
  • Kim, Sung-Chul (Department of Bio-Environmental Chemistry, Chungnam National University)
  • Received : 2015.12.17
  • Accepted : 2016.02.20
  • Published : 2016.02.29
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Abstract

Heavy metal pollution in agricultural fields at the abandoned metal mines has been serious problems in Korea. In order to manage heavy metal pollution in surface water and soil, numerous remediation strategies have been established. Therefore, main purpose of this research was to examine feasibility of ecological toxicity assessment for establishing management strategy in heavy metal polluted agricultural fields. Heavy metal concentration in surface water and soil was monitored along with ecotoxicity experiment with Daphnia magna and Eisenia fetida. Result showed that high toxicity was observed in heavily polluted agricultural field with heavy metals. In case of mortality of Daphnia magna (85%) and Eisenia fetida (6.7%), the highest ratio was observed when heavy metal concentration in surface and soil was high. Calculated ecotoxicity index (EI) ranged 0.06-0.30 and the highest EI was observed in heavily polluted sites among 5 abandoned metal mines. Overall, ecological toxicity assessment is necessary to evaluate heavy metal pollution in agricultural fields near at the abandoned metal mines along with chemical concentration analysis.

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