| Title |
Heavy Metal Pollution in Onsan Coastal Area |
| Authors |
조현서 ; 박청길 ; 변종률 ( Hyeon Seo Cho ; Chung Kil Park ; Jong Ryool Pyen ) |
| Abstract |
This study was performed from November 19, 1982 to October 6, 1983 to investigate heavy metal pollution on Onsan coastal area. The arithmetic mean values of cadmium, copper, lead and zinc in the seawater were 0.53, 3.96, 4.52 and 28.6㎍/ℓ, respectively, which were higher than those of the reference area, Jinha. The concentrations(dry wt.basis) of cadmium, copper, lead and zinc in the seaweed, Grateloupia turuturu, were 0.18, 9.38, 2.47 and 46.0 ㎎/Kg, respectively. The concentrations(dry wt. basis) of cadmium, copper, lead and zinc in the Shellfish, Mytilus edulis, were 2.53, 10.4, 6.43 and 48.7㎎/Kg, respectively. These were higher than those of the reference area, Jinha. Chemical species of copper in Dae jeong stream, which was the main source of heavy metals in Onsan coastal area, was shown that most of cupric ions added to the stream water formed complex with organic ligands. The toxic effects of copper to the aquatic life might not seem to be acute because more than 90% of the copper was formed in complex. |