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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.
자하철역에서의 공기질 평가에 관한 연구 : PM-10 및 중금속
배상호(Bea Sang-Ho),최우건(Choi Woo-Gun),박덕신(Park Duk-Sin),정우성(Jung Woo-Sung),김태오(Kim Tae-Oh) 한국철도학회 2002 한국철도학회 학술발표대회논문집 Vol.- No.-
Subway has been used one of major public transportations because of overpopulation and heavy traffic problems in the metropolitan areas. In this study, continuous date of PM-10(particles with aerodynamic diameter < 10um) and heavy metal concentration measurements for autumn and winter period were analysed. These measurements have been carried out at the outdoor, concourse, platform, tunnel. The study results showed that the average seasonal concentration of PM-10 particles were 181.01㎍/㎥ in autumn and 129.03㎍/㎥ in winter, respectively. The concentration of Fe, Cu showed the largest peak concentrations during the respective season.
배상호(Bea Sang-Ho),최우건(Choi Woo-Gun),박덕신(Park Duck-Shin),정우성(Jung Woo-Sung),김태오(Kim Tae-Oh) 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. This study was carried out to evaluate of Volatile Organic Compounds(VOCs) concentrations in Kumi industrial complex. Ambient air sampling was determined at five sites from August to September in 2002. The Volatile Organic Compounds samples were collected using the silicocan canisters, and were determined by GC/MS which connected preconcentrator system. The Kumi industrial complex of VOCs concentrations were generally similar with Yeochun s but some of VOCs concentrations of Kumi were higher than Yeochun industrial complex"s. Also the industrial area was higher than downtown and residential district.
PMF를 응용한 구미시 PM-10 오염원의 정량적 기여도 추정연구
황인조(InJo Hwang),조영혁(Young Hyuck Cho),최우건(Woo Gun Choi),이혜문(Hye Moon Lee),김태오(Tae Oh Kim) 한국대기환경학회 2008 한국대기환경학회지 Vol.24 No.1
The objective of this study was to quantitatively estimate PM-10 source contribution in Gumi City, Korea. Ambient PM-10 samples were collected by a high volume air sampler, which operated for 84 different days with a 24-h sampling basis, from June 14, 2001 though May 19, 2003. The filter samples were analyzed for determining 13 inorganic elements, 3 anions, and a total carbon. The study has intensively applied a receptor model, the PMF (Positive Matrix Factorization) model. 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 secondary sulfate (34%), motor vehicle (26%), soil relation (5%), field burning (3%), industrial relation (3%), secondary nitrate (22%), and incinration (7%) in terms of PM-10 mass, respectively.
지하철역사내 측정위치별 PM-10 및 중금속 농도특성에 관한 연구
장정욱(Chang Jung-Wook),조장제(Cho Jang-Je),최우건(Choi Woo-Gun),박덕신(Park Duk-Sin),정우성(Jung Woo-Sung),김태오(Kim Tae-Oh) 한국철도학회 2003 한국철도학회 학술발표대회논문집 Vol.- No.-
Subway has been used one of major public transportations because of overpopulation and heavy traffic problems in the metropolitan areas. So, the air pollution has been serious. In this study, continuous date of PM-to (particles with aerodynamic diameter < 10㎛) and heavy metal concentration measurements for winter, spring and summer. These measurements have been carried out in the outdoor, concourse, platform, tunnel. The study results showed that the average seasonally concentration of PM-10 particles were 141.57㎍/㎥ in winter, 129.34㎍/㎥ in spring and 122.73㎍/㎥. The average concentration of PM-10 particles at indoor higher than outdoor. The concentration of Fe, Cu, showed the largest peak concentrations during the respective season.
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.