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Monitoring of Seasonal Water Quality Variations and Environmental Contamination in the Sambo Mine Creek, Korea

삼보광산 하류 수계의 계절별 수질변화와 오염도 평가

  • Jung, Goo-Bok (On-spot Extension Division, Extension Service Bureau, RDA) ;
  • Lee, Jong-Sik (National Academy of Agricultural Science, RDA) ;
  • Kim, Won-Il (National Academy of Agricultural Science, RDA) ;
  • Ryu, Jong-Su (National Institute of Crop Science, RDA) ;
  • Yun, Sun-Gang (National Academy of Agricultural Science, RDA)
  • 정구복 (농촌진흥청 농촌지원국 현장기술지원과) ;
  • 이종식 (국립농업과학원) ;
  • 김원일 (국립농업과학원) ;
  • 류종수 (국립식량과학원 고령지농업연구센터) ;
  • 윤순강 (국립농업과학원)
  • Published : 2008.12.31

Abstract

Metal mining district drainage is a well recognized source of environmental contamination. Oxidation of metal sulfides produces acidic and metal-rich waters that contaminate local surface water and ground water in mines, mine dumps, and tailing impoundments. This monitoring study was carried out to investigate the stream water quality and pollution as affected by the Sambo mine drainage in relation to the relative distance from the mine. It obvious that pH values of the mine drainage ranged from 5.8 to 6.9, while the average concentrations of the dissolved chemical constituents for EC, $SO_4^{2-}$, $K^+$, $Ca^{2+}$, and $Mg^{2+}$ were $1.77\;dS\;m^{-1}$, 929, 14.6, 263.3, and 46.9 mg/L in mine drainage discharged from the main waste rock dumps (WRD), respectively. Furthermore, EC values and sulfate concentrations exceeded the critical toxicity levels in agricultural water for rice plant ($1.0\;dS\;m^{-1}$ for EC and 54.0 mg/L for $SO_4^{2-}$). Also, the average of dissolved cadmium concentrations ($0.016{\sim}0.021\;mg/L$) was higher than water quality standard (0.01 mg/L) for agricultural water in Korea, in addition to Zn, Fe and Mn were higher than trace metals maximum concentrations which recommended by FAO for irrigation water. The results indicate that mine drainage discharged from the Sambo mine affected stream water at least to distance of 1 km downstream of the mine water discharge point. EC values, $SO_4^{2-}$ and $Ca^{2+}$ concentrations in discharged water positively correlated with dissolved Cd, Zn, Al and Mn concentrations, while the pH values negatively correlated. In addition, EC values, $SO_4^{2-}$ and $Ca^{2+}$ concentrations were negatively correlated with pH values.

Keywords

Sambo mine;mine drainage;watershed;water quality;trace metal

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Cited by

  1. Assessment of the Heavy Metal Contamination in Paddy Soils Below Part of the Closed Metalliferous Mine vol.34, pp.1, 2015, https://doi.org/10.5338/KJEA.2015.34.1.08
  2. Contamination Assessment of Water Quality and Stream Sediments Affected by Mine Drainage in the Sambo Mine Creek vol.31, pp.2, 2012, https://doi.org/10.5338/KJEA.2012.31.2.122
  3. Current research trends for heavy metals of agricultural soils and crop uptake in Korea vol.31, pp.1, 2012, https://doi.org/10.5338/KJEA.2012.31.1.75
  4. Assessment of Human Bioavailability Quotient for the Heavy Metal in Paddy Soils Below Part of the Closed Metalliferous Mine vol.34, pp.3, 2015, https://doi.org/10.5338/KJEA.2015.34.3.30