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김영철,김종섭,유찬주,주충열 漢陽大學校 環境工學硏究所 1997 環境科學論文集 Vol.18 No.-
현재 국내에서 시판중인 의류용 세탁 분말세제 6종을 대상으로 미생물에 의해 분해될 수 있는 정도를 파악하기 위한 생분해도(Biodegradability)를 측정하고 동시에 인체에도 직접적인 영향을 미치는 중금속(Pb,Cd,As 및 Hg)를 분석하였다. 분석결과 전제품이 KS 기준에 모두 적합하였으나 석유계 계면활성제인 AOS 또는 LAS가 다량 포함 되어있는 제품에서는 상대적으로 생분해도가 낮다는 것을 알 수 있으며 중금속 함유량은 제품 6종 모두 화장품 원료기준에 훨씬 못미치는 우수한 제품인 것을 알 수 있었다. As the subject of study of six kinds of laundry powder detergents for clothing that come into the domestic market at present, the biodegradabilities to understand the extent of microorganisms decomposition were measured and the heavy metals(Pb, Cd, As and Hg) to have a direct effect on human body were analyzed. Analysis results show that though they all suit KS(Korean Industrial Standards) well, powder detergents containing plenty of petroleum surface active agents have the lower biodegradability than the others and Heavy metal contents are that all of them are very good at the cosmetic material standards.
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김영철,진수진,유찬주 漢陽大學校 環境科學硏究所 1996 環境科學論文集 Vol.17 No.-
A new analysis method has been developed that can quantify the six non-halogenized organic volatile pollutants (benzene, toluene, ethylbenzene, o-,m-,p-xylene) which are added to the drinking water requirement lately and styrene at the same time. The concentration efficiency improved when the material which is trapped in the second in the second trapping equipment with the help of pyrofoil have the thermodesorption, a procedure that should be done after the organic volatile pollutants which are contained in water are purged and trapped through a two step trap. And even the infinitesimal that is usually measured and expressed in terms of ng/L is detected thorough an GC-FID using analysis of it. Each statistical detection limit of benzene, toluene, ethylbenzene, o-,m-,p-xylene, and styrene is 34.32, 70.35, 15.48, 40.98, 73.12, 40.10, and 112.9lng/L. It takes less than 40 minutes to analyze the testing material once. An investigation using this method shows the pollution level of 1 spot of the Han river and 6 spots of Jungnang ch’on is benzene:10.4∼42.0㎍/L, Toluene: 27.2∼115.2㎍/L, ethylbenzene: 0∼6.4㎍/L, o-xylene: 0∼8.8㎍/L, m-xylene: trace∼8.4㎍/L, p-xylene: trace∼7.6㎍/L, styrene:0∼2.4㎍/L. Compared with the drinking water requirement all is below the criterion except benzene. The spots were much polluted by benzene which exceeds the criterion high.
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