Journal of Environmental Impact Assessment (환경영향평가)
- Volume 9 Issue 2
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- Pages.143-153
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- 2000
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- 1225-7184(pISSN)
Heavy Metal Contamination in Soil, Rice, and Sediment from ManKyeong and DongJin River Area
만경강·동진강 유역의 토양, 현미, 저질토중의 중금속 함량 및 분포
- Kwon, Young-Hun (Department of Chemistry, Kunsan National University) ;
- Sung, Kum-Soo (Department of Chemistry, Kunsan National University) ;
- Hwang, Gab-Soo (Department of Environmental Engineering, Kunsan National University) ;
- Chang, Che-Chul (Department of Chemistry, Kunsan National University)
- Published : 2000.06.30
Abstract
This study was performed to investigate the heavy metal contents and distribution in soil, sediment, and rice from the downstream area of ManKyeong and DongJin River. Of the sites on Mankyeong river area, site M-1(Mokchon bridge) showed the highest average contents of Cd, Cr and Pb in paddy soil. In DongJin river area, site D-3(Munpo) and D-4(Gerjeonri) showed relatively high level of average contents of Cr, Pb and Zn in paddy soil. The average contents of heavy metals in brown rice from ManKyeong river area were 0.10mg/kg for Cd, 0.99mg/kg for Cr, 2.07mg/kg for Pb, 4.44mg/kg for Cu and 32.03mg/kg for Zn while those in brown rice from DongJin river area were 0.14mg/kg for Cd, 0.74mg/kg for Cr, 1.78mg/kg for Pb, 4.57mg/kg for Cu and 33.60mg/kg for Zn. Zn showed the highest transportation-rate from paddy soil to brown rice while Pb showed the lowest. From the results of heavy metal analysis in sediments, the average contents of Cd, Cr, Pb and Cu were generally high in site M-5(Euonri) and D-4(Gerjeonri), the most downstream sites in Mankyeong river and DongJin river, respectively.