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만경강 지류에 서식하는 Unio Douglasiae 의 중금속 함량에 관한 조사연구
유일수,김환홍 ( Il Sou Yoo,Hwan Hong Kim ) 한국하천호수학회 1991 생태와 환경 Vol.24 No.2
For this survey, Unio douglasiae was collected from six station in Mangyung River from October 1987 to October 1990. The contents of Cd, Pb, Cr, Cu and Zn in edible portion of Unio douglasiae were analyzed. The results obtained are as follows; The contents of heavy metals in Unio douglasiae shoued in the range of 0.03∼0.34 ppm for Cd, 0.18∼1.69 ppm for Pb, 0.04∼0.38 ppm for Cr, 0.38∼1.24 ppm for Cu, 1.94∼3.24 ppm for Zn. As a whole, contents of heavy metals contained in Unio douglasiae from the lower course of the Jeon Ju Chon were larger than those from the upper course. But those was little difference between the contents of heavy metal at E site and F site.