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Contents of heavy metals in sea waters, sediments, fishes, and shellfishes from Kunsan·Changhang coastal areas were investigated. Average contents of heavy metals in sea water were Pb 2.35, Cd 0.52, Cu 2.09, Zn 13.65 and Hg 0.24 ㎍/ℓ. Average contents of heavy metals in sediments were Pb 19.49, Cd 0.15, Cu 9.31, Zn 20.07 ㎎/㎏, and Hg 13.6 ㎍/㎏. Average contents of Pb, Cd, Cu, Zn, and Hg in Acantogobius hasta were 1.08, 0.05, 2.24, 58.14, and 0.151 ㎎/㎏ and those in Mugil cephalus were 1.63, 0.05, 1.51, 32.69, and 0.065 ㎎/㎏. Accumulation ratios of Pb and Cu in Acantogobius hasta were similar to Mugil cephalus but accumulation ratios of Zn and Hg in Acantogobius hasta were higher 2 times than in Mugil cephalus. Average contents of Pb, Cd, Cu, Zn, and Hg in Cycling sinensis were 1.03, 1.23, 6.83, 75.83, and 0.071 ㎎/㎏ and those in Ruditapes philippinarum were 0.93, 0.86, 5.90, 52.16, and 0.074 ㎎/㎏. Accumulation ratios of heavy metals in shellfishes were in the order of Cu$gt;Cd$gt;Zn$gt;Pb$gt;Hg, irrespective of shellfishes kind.
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