出版社：Korean Society of Environmental Health and Toxicology
摘要：The writer measured methemoglobin formation with solvent (n-hexane,ethylacetate and methanol) organic extracts from the sediments of the W onju stream run through W onju city on Octover 2nd,1985. Hemoglobin was converted to methemoglobin with the n-hexane extract obtained from the sediment of the St. C and St. D was polluted industrial wastewater,but not with that from the St. B was polluted with the urban wastewater. The formation of methemoglobin was remarkable with the all solvent extracts from the sediment of the uper stream of the W onju stream. Doses of the solvent extracts for 20% methemoglobin formation in the researched Wonju streams were as follows;0.095 ~0.28 mg/ml in n-hexane extract. 0.85~ 1.3 mg/ ml in methanol extract and 1.95 ~ 2.80 mg/ml in ethylacetate extract.
