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羅圭煥 한국환경독성학회 1986 환경독성보건학회지 Vol.1 No.1
1985년 10월 2일에 도시형 하천인 원주천의 저질을 각 용매로 추출한 유기물질에 대하여 혈액독인 methemoglobin 생성능을 측정하였다. 공장폐수의 영향을 받는 St. C 및 St. D수역의 저질에서는 n-hexane 추출물에 methemoglobin 생성능이 뚜렷하였으나 도시하수의 영향이 심한 St. A의 각용매추출물에서도 methemoglobin 생성능이 인정 되었다. 각 유기용매 추출물의 methemoglobin을 20% 생성하는 추출물농도 범위는 n-hexane 추출물이 0.095~0.28mg/ml이었으며 methanol 추출물은 0.85~1.3mg/ml ethylacetate 추출물은 1.95~2.80mg/ml이었다. The writer measured methemoglobin formation with solvent (n-hexane, ethylacetate and methanol) organic extracts from the sediments of the Wonju stream run through Wonju 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 Wonju stream. Doses of the solvent extracts for 20% methemoglobin formation in the researched Wonju streams were as follows; 0.095~0.28mg/ml in n-hexane extract. 0.85~1.3mg/ml in methanol extract and 1.95~2.80mg/ml in ethylacetate extract.
나규환,이장훈 환경독성보건학회 1992 환경독성보건학회지 Vol.7 No.3
Physical compositions of solid waste in Wonju, shopping area were investigated with combustibles 78.13% (papers 35.89%, foods 14.41% etc.) incombustibles 21.87% (glass and ceramics 11.02%, metals 6.0% etc.) in 1991, solid waste in apartment area were investigated with combustibles 84.27% (foods 34.29%, papers 22.58% etc.), incombustibles 15.73% (glass and ceramics 8.77%, metals 4.85% etc.) and residence area were characterised with combustibles 70.37% (foods 33.55% , papers 10.53% etc.) and incombustibles 29.63% (ash of briquet 17.29%, glass and ceramics 7.49% etc.). Water qualities of a leachate from municipal landfill of Wonju city were analysed pH 8.0~8.4, total suspended solid 102~140 mg/1, CN ̄ 0.003~ 0.008 mg/1, NO$_2$-N 0.108~0.294 mg/1 and phenols 0.46~1.12 mg/1. Volume of the leachate for 20% methemoglobin formation were 0.2~0.4 mg/ml in Octever, 0.3~0.4 ml/ml in December sampling, 0.2~0.3 ml/ml in St.1 and 0.4 ml/ml in St.3.
羅圭煥 한국환경독성학회 1987 환경독성보건학회지 Vol.2 No.1
1986년 4월 29일 원주시 野山의 토양과 原州상류저질 및 매지저수지저질 200g로 부터 humic acid를 각각 7.23g, 3.35g 및 4.61g씩을 얻었다. 대조표준 humic acid와 St. A, St. B 및 St. C의 humic acid의 이화학적성상은 0.01% alkali 용액에서 COD가 각각 58.9ppm, 65.9ppm, 56.9ppm, 및 54.0ppm 이었으며 BOD는 각각 6.5ppm, 8.9ppm, 15.0ppm 및 6.7ppm이었다. Humic의 methemoglobin 20% 생성(CD_(20))하는 농도는 대조표준품은 0.16mg/ml, St. A는 0.34mg/ml, St. B는 0.65mg/ml 및 St. C는 0.88mg/ml이었다. The author obtained three kinds of humic acid from the soil of suburbs in the Wonju city, sediments of Wonju stream and Maeji reservoir in 29 April 1986. The yield of each humic acid was 7.23g, 3.35g and 4.61g per sample 200g. In the physicochemical characters, the COD varied from 65.9 ppm to 54.9 ppm and BOD showed 6.7~15.9 ppm, but the standard humic acid was COD 58.9 ppm and BOD 6.5 ppm in 0.01 % solution. Doses of the humic acids for 20% methemoglobin formation are as follows; 0.303mg/ml in St. A humic acid, 0.602 mg/ml in St. B humic acid, 0.84mg/ml in St. C humic acid and 0.105 mg/ml in standard humic acid.