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Journal of Environmental Toxicology 2004;19(2):141-151.
황복(Takifugu obscurus)에 대한 중금속, 유기주석화합물 및 다환방향족탄화수소(PAHs)의 급성 독성
이정석, 이규태, 김동훈, 김진형, 한경남
Acute Toxicity of Dissolved Inorganic Metals, Organotins and Polycyclic Aromatic Hydrocarbons to Puffer Fish, Takifugu obscurus
Jung-Suk Lee , Kyu-Tae Lee , Dong-Hoon Kim , Jin-Hyeong Kim , Kyung-Nam Han
ABSTRACT
We exposed juvenile puffer fish, Takifugu obscurus (30 days after hatching) to various aqueous pollutants including 4 kinds of inorganic metals (Ag, Cd, Cu and Hg), 2 organotin compounds (tributyltin [TBT] and triphenyltin [TPhT]) and 5 polycyclic aromatic hydrocarbon (PAH) compounds (chrysene, fluoranthene, naphthalene, phenanthrene and pyrene) to estimate median lethal concentrations (LC50s) of each pollutant after the 96-hour acute exposure. Among the inorganic metals, Hg (52 ㎍/L; 96-h LC50) was most toxic to test animals and followed by Ag (164 ㎍/L), Cu (440 ㎍/L) and Cd (1180 ㎍/L). Aqueous TBT was more toxic between the two organotins; the 96-h LC50 for TBT (5.1 ㎍/L) was 3 times lower than that of TPhT (17.3 ㎍/L). The acute toxicity of PAH compounds was highest for chrysene (1.5 ㎍/L; 96-h LC50) and decreased in the order of pyrene (65 ㎍/L) > fluoranthene (158 ㎍/L) > phenanthrene (432 ㎍/L) > naphthalene (8690 ㎍/L). The toxicity of PAH compounds was closely related to their physico-chemical characteristics such as Kow and water solubility, and well explained by simple QSAR relationship. The sensitivity of puffer fish to various inorganic and organic pollutants was generally comparable to various fish species widely used as standard test species in previous studies and further evaluation should be conducted to develop adequate testing procedures for T. obscurus when used in various toxicity tests.
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