한국 소아 Graves병의 HLA Class I과 Ⅱ유전자형

최우건,이병철 가톨릭대학 (가톨릭신학대학) 대학원 1994 가톨릭大學醫學部 論文集 Vol.47 No.4

지하철역사에서의 휘발성 유기화합물 농도 평가

최우건,배상호,박덕신,정우성,김태오 한국철도학회 2002 한국철도학회 학술발표대회논문집 Vol.- No.-

Volatile Organic Compounds(VOCs) contribute to the formation of ozone and PAN which are injurious to health through complex photochemical reactions. Growing consumption of fossil fuels results in significant emission of VOCs and other air pollutants into the atmosphere. In this study, Ambient an grab samples of VOCs were collected at the platform and the concourse of six stations in the subway from February 21th to 28th. Among the total contents, Toluene (118.74 ppm) showed the highest concentration in the Indukwon station platform while other contents were measured low concentrations. Also, the platform concentrations were higher than the concourse concentrations through the whole contents.

소아기 선천성 심질완의 임상적 관찰

최우건,박광선,김종완,오창규,양만규 최신의학사 1988 最新醫學 Vol.31 No.11

PA5)구미 전자산업단지에서의 주·야간 VOCs 농도 특성

최우건,장정욱,조장제,김태오 한국대기환경학회 2003 한국대기환경학회 학술대회논문집 Vol.- No.-

구미산업단지 대기중 휘발성유기화합물(VOCs)의 농도특성

최우건,배상호,박덕신,정연구,김태오 한국환경과학회 2004 한국환경과학회지 Vol.13 No.3

This study focuses on the measurement of airborne Volatile Organic Compounds (VOCs) in the Kumi electronic industrial complex during the time periods of August and September, 2002 and January and February, 2003. This study was based on the US-EPA method TO-14 while the VOCs were analyzed with GC/MSD. The toluene level revealed high concentration at all measurement sites. The areal rank of average concentrations of VOCs is as follows : industry l>industry2>urban>middle>residential. Concentrations of VOCs in Kumi electronic industrial ones were generally higher than at Yeochon and Ulsan industrial complexes. Dichloromethane and trichloroethylene, which are used as a cleaner in the process of electronic industries, were observed 4 to 8 times higher than those of other areas. Among the aromatic compounds, toluene showed the highest level, while the concentrations of dichloromethane and trichloroethylene were higher than those of other halogen compounds. In Kumi, toluene, trichloroethylene, and dichloromethane were confirmed as the major compounds of VOCs by this research.

PA26)전자산업단지에서의 대기중 휘발성유기화합물 오염도 특성

최우건,조장제,장정욱,김태오 한국대기환경학회 2003 한국대기환경학회 학술대회논문집 Vol.- No.-

구미전자산업단지에서의 카르보닐화합물 분포 특성

최우건,구민호,김태오 한국냄새환경학회 2008 실내환경 및 냄새 학회지 Vol.7 No.2

The density characteristics of aldehydes in Kumi electronic Industrial Complex are measured in the summer and autumn in this study. Considering the characteristics of Kumi, five representative monitoring sites in Kumi are selected. According to fair Korean odor method, samples are collected and analyzed from July 26th, 2005 to October, 10th. Investigation objects include formaldehyde, acetaldehyde, propionaldehyde, butyraldehyde, iso-valeraldehyde, n-valeraldehyde. 40 samples in summer and 45 samples in autumn are measured and analyzed, respectively. The results show that the mean concentrations in residential area and industrial area are both obey the below sequence: acetaldehyde>formaldehyde>propionaldehyde>butyraldehyde>iso-valeraldehyde>n-valeraldehyde. For acetaldehyde, its monitored concentration in industrial areas and residential areas close to industrial areas is higher than other areas. However, for formaldehyde, its concentration in the residential area 3 in tends to be higher than that in industrial areas. Based on seasons, concentrations in summer with long sunshine duration are higher than those in autumn. It can be seen that the density distribution of aldehyde in Kumi industrial complexes is closely related with the widely use of alcohol-type additives for automobiles and alcohol-type fuels. Meanwhile, most of the researches on aldehyde concentrate on capital areas or petrochemical industrial areas, taking the chance of odor prevention and control law implementing, the management scheme and reduction strategies on aldehyde ought to be carried out, which are also suitable to the enterprise characteristics in other industrial areas of this study.

PMF를 이용한 구미지역의 VOCs 오염원 및 기여도 확인

최우건(Woo-Gun Choi),조영혁(Young-Hyuck Cho),장한성(Han-Sung Jang),김창호(Chang-Ho Kim),김태오(Tae-Oh Kim) 한국냄새환경학회 2010 실내환경 및 냄새 학회지 Vol.9 No.2

본 연구는 2002년부터 2년여에 걸쳐 구미지역을 대상으로 VOCs를 채취하였으며, 이중 TO-14에 제시된 VOCs중 29개 성분을 GC/MSD를 이용하여 분석하였다. 이러한 분석 자료를 바탕으로 구미지역의 대기중 VOCs 농도 경향을 파악하였고, 수용모델의 한 종류인 PMF모델을 이용하여 오염원 및 정량적 기여도를 산출하였다. VOCs의 연평균 농도는 산업단지가 주거지역보다 높은 농도를 보였고, 주거1, 2의 경우 산단에서 고농도로 검출된 VOCs는 비교적 낮은 농도를 보인 반면, 자동차 배출가스가 주 오염원인 방향족 물질들이 높은 농도로 검출되어 산업단지에서 발생하는 VOCs의 직접적인 영향을 받지 않은 것을 알 수 있었다. 분석결과를 바탕으로 PMF 모델을 적용하여 수행한 결과 7개의 VOCs 오염원을 확인하였고, 각 오염원의 정량정 기여도를 파악하였다. 첫 번째 오염원은 Freon relation source로 기여도는 17%로 나타났다. 두 번째 오염원은 구미지역의 특징을 나타낸 Electronic industrial complex source로 기여도는 27.86%로 나타났다. 세 번째 오염원과 네 번째 오염원은 미확인 오염원 Unknown source - 1, 2로 기여도는 각각 2.96%과 7.02%로 나타났다. 다섯 번째 오염원은 다른 물질에 비해 톨루엔이 주로 나타난 Organic solvent source로 확인하였으며, 기여도는 19.26%로 전자산업 관련 오염원 다음으로 높게 나타났다. 여섯 번째 오염원은 방향족 화합물들이 나타나 Vehicle Exhaust source로 확인하였으며, 17.59%의 기여도를 보였다. 마지막 오염원은 섬유산업 관련 오염원인 Textile relation source로 나타났으며, 기여도는 8.31%로 밝혀졌다. IIn this research, ambient VOCs samples were collected by specially prepared stainless steel canisters from August 2002 to September 2004 at seven representative sites in Gumi. 29 kinds of VOCs which are presented by United States EPA method TO-14 were analyzed using GC/MSD. Based on the monitored data, the characteristics of VOCs concentrations in atmosphere in Gumi were grasped, pollution sources and contributions were also analyzed by PMF model, one kind of receptor models. As a whole, the average annual concentrations of VOCs in industrial complexes were higher than that in residential areas. In residential area1 and residential area2, the VOCs that had high concentrations in industrial complexes showed comparatively lower concentrations. But the aromatic substances mainly attributed to vehicle exhaust showed high concentrations which indicated that VOCs emitting sources in industrial areas have no direct effect on the VOCs concentration in residential areas. The results from PMF modeling indicated that a total of seven sources were independently identified and each source was contributed to the ambient Gumi City from Freon relation source (17%), electronic industrial complex source (27.86%), organic solvent source (19.26%), vehicle exhaust source (17.59%), Textile relation source (8.31%), and unknown source - 1, 2 were up to 2.96%, 7.02% in terms of VOCs, respectively.

대기 중 트리메틸아민의 채취 및 분석방법에 따른 효율성 비교연구

이승현,박영수,박영균,최우건,박병수,김태오 한국냄새환경학회 2013 실내환경 및 냄새 학회지 Vol.12 No.2

The experiment was performed for establishing the best condition of experiment and defining the issue of GC/FID methods based on HS-SPME-capillary column when TMA is measured in the air. Also the experiments are performed based on odor process test method alternately. At first, The result that KOH and NaOH were compared for eluting the TMA among the preprocessing processes, showed that NaOH is 2.2 times higher figure of area, 0.9972 of curve linearity(R2), and 1.96% of relative standard deviation. As a result using the ultrasonic cleaner and 30℃ constant temperature water bath, constant temperature water bath showed stabilized curve linearity (R2 0.9972) and relative standard deviation (RSD 2%). In advance of experiment conditions, the result performed acid filter paper method and acidic solution absorption among TMA sampling methods, is that acidic solution absorption detected 5 times better sensitivity than Acid filter paper method. Acidic solution absorption showed to provide excellent analysis sensitivity in this experiment restrictively. Therefore, in case of experiment by GC/FID method based on HS-SPME-capillary column, selection of sampling method expects that acidic solution absorption better effect and in case of disassemble reagent, NaOH and 30℃ constant temperature water bath is better effect in the experiment conditions.

담낭 자연천공에 의한 담즙성 복막염 1례

이병준,최우건,이경일,허재균,이원익 최신의학사 1988 最新醫學 Vol.31 No.1