한국 임해 공단 연안에서 퇴적물 해수 및 굴 (Crassostrea gigas)의 중금속 함량

The Concentrations of Heavy Metals in Sediment Seawater and Oyster (Crassostrea gigas) in Coastal Region of Industrial Complex in Korea

To investigate the degree of contamination from Korean coastal region, the concentrations of Cu, Pb, Zn and Cd in sediments, seawater and oyster (Crassostrea gigas) at Masan Bay, Onsan Bay, Daesan industrial complex and their control areas were analysed. Values for sediments, seawater and oyster in the industrial complex coastal region were higher than those in the control area except for seawater in Daesan. The values for dissolved phasc of Cu, Pb, Zn and Cd in seawater showed 0.3~1.75 <TEX>${mu}g/l$</TEX>, 0.013~0.12 <TEX>${mu}g/l$</TEX>, 0.20~6.14 <TEX>${mu}g/l$</TEX> and 0.007~0.021 <TEX>${mu}g/l$</TEX>, respectively. The concentrations of Cu, Pb, Zn and Cd in sediments werd 12.0~47.8 <TEX>${mu}g/g$</TEX>, 6.16~59.5 <TEX>${mu}g/g$</TEX>, 43.0~230 <TEX>${mu}g/g$</TEX> and 0.52~11.2 <TEX>${mu}g/g$</TEX>, respectively. The concentrations of Cu, Pb, Zn and Cd in oyster showed 12.1~85.6 <TEX>${mu}g/g$</TEX>, 0.267~1.48 <TEX>${mu}g/g$</TEX>, 1, 070~3, 250 <TEX>${mu}g/g$</TEX> and 3.23~7.71 <TEX>${mu}g/g$</TEX>, respectively. The contents of heavy metals in oysters at industrial complex coastal region showed that they were not seriously contaminated compared with those of Mussel Watch (1992).