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손동헌,정원태 한국물환경학회 1988 한국물환경학회지 Vol.4 No.2
Total-mercury contents of water and fresh-water fishes from NakDong river basin in July, 1985 were determined by Quartz Tube combustion-Gold Amalgamation method. Samples were collected at 12 sites (An Dong Lake, An Dong, Go Pyong, Nak Dong, Ku Mi, Sung Ju Bridge, Hyon Poong, Jeok Kyo, Nam Ji, Su San, Kim Hae, Ku Po) of Nak Dong river basin and physico-chemical. properties of water were determined by Horiba U-7 type analyzer Calibration method was used in calculation for those of fresh-water fishes and Standard Addition method, for water. The results were as follows ; 1 . Total mercury contents of 6 species, 124 freshwater fishes averaged 0.196ppm. 2. Total-mercury contents of Parasilurus Asotus were gradually increased from the upper stream to the down (0.25∼0.40ppm) 3. Total mercury contents in various parts of Carassius Auratus muscle were comparatively uniform. 4. Mean total mercury contents of Parasilurus Asotus (0.314ppm) was higher than that of Carassius Auratus (0.123ppm), which is thought to be caused by the difference of habitats. 5. pH and DO values of water were gradually decreased from the upper stream to the down. 6. Conductivity of Ku Po site was particulary high (1.8) 7. Total mercury contents of water averaged 0.279ppb. 8. The concentration ratio of total mercury contents between fresh-water fishes and water approximately averaged 773 : 1.
손동헌,허강서,정원태 중앙대학교 약학연구소 1992 약학 논총 Vol.6 No.-
To survey the background values and conditions of pollution originated from mercury compounds, water and fish samples were collected in 12 places of Keum river basin from August to September in 1989 and their total mercury contents were analyzed. Physico-chemical properties of water were determined at collection. The mercury in water sample was extracted with dithizone-benzene and fish samples were pretreated for direct combustion. Total mercury contents were detected by Quartz Tube Combustion-Gold Amalgamation Method using Flameless Atomic Absorption Spectrophoto-mery. Calibration curves were constructed by injection of standard solution for fish and standard addition method for water. Total mercury content of 10 species, 90 fish samples were averaged 0.126ppm and that of water was 0.188ppb. The fluctuation of the total mercury contents, their biologi-cal concentration ratios and physico-chemical properties of water would be discussed in this paper.