This study was performed to investigate the riverbed structure and the pollution type in Nakdong River, Western Nakdong River, and Suyoung Stream. Sediment and water samples were collected at 15 in Nakdong River, 7 in Western Nakdong River, and 8 sites in Suyoung Stream from February 20, 1997 to June 15, 1997. The depth distributions of sampling sites in the three streams were measured and heavy metals(Cd, Pb, Cr, Cu) and pesticides in sediments and COD, BOD, and total nitrogen(T-N) in water samples were analyzed.
The deepest and the shallowest sites were site 11(11.58m) and 9(3.35m) in Nakdong River, site 7(6.25m) and 4(2.06m) in Western Nakdong River, and site 8(2.89m) and 1(0.61m) in Suyoung Stream, respectively. The mean concentration of Cd(45.79ppm) was higher in the sediment of Western Nakdong River than in other two streams and those of Pb(76.25ppm), Cr(48.13ppm), and Cu(77.50ppm) were higher in the sediment of Suyoung Stream than in other two streams. Pesticides(1 kind of organophosphonis and 3 kinds of organochlorine pesticide) were detected only in the sediment of Western Nakdong River. The mean concentrations of COD(20.26ppm), BOD(25.36ppm), and T-N(18.05ppm) were higher in the water sample of Suyoung Stream than in other two streams.

• 황선출(인제대학교 환경학과) | Sun-Chool Hwang (Dept. of Environmental Science, Inje Univ.)
• 이봉헌(부산대학교 화학과) | Bong-Hun Lee (Dept. of Chemistry, Pusan National Univ.)
• 박원우(부산전문대학 공업화학과) | Won-Woo Park (Dept. of Industrial Chemistry, Pusan Junior College)
• 정영언(부산전문대학 공업화학과) | Young-Eon Cheong (Dept. of Industrial Chemistry, Pusan Junior College)
• 박흥재(인제대학교 환경학과) | Heung-Jai Park (Dept. of Environmental Science, Inje Univ.)
• 정성욱(인제대학교 환경학과) | Sung-Ug Jeong (Dept. of Environmental Science, Inje Univ.)