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연구논문 : 서울시의 2005~2006년 도시배경 및 상층측정망의 대기질 특성 분석
유승성 ( Seung Sung Yoo ),전재식 ( Jae Sik Jeon ),정권 ( Kweon Jung ),신은상 ( Eun Sang Shin ),정부전 ( Bu Jeon Jung ),류리나 ( Ri Na Ryu ),우정헌 ( Jung Hun Woo ),선우영 ( Woo Young Sun ) 한국환경영향평가학회 2011 환경영향평가 Vol.20 No.1
The results of comparing PM10 concentration between ``Namsan`` and ``Yongsan-gu`` air quality monitoring stations show similar values with averaged concentration in the whole Seoul. The correlation factors in both sites were 0.865, 0.828 in 2005, 2006, respectively. For ``Bukhansan`` and ``Gangbuk-gu`` air quality monitoring stations, different from the results mentioned above, they showed clear differences as altitude changes. PM10 concentration in ``Bukhansan`` monitoring stations was 10 μg/m3 lower than ``Gangbuk-gu`` monitoring station which is located near the ground. Also, averaged PM10 concentration in ``Bukhansan`` and ``Gangbuk-gu`` monitoring stations was lower than that in the whole Seoul. When comparing NO2 concentration between ``Namsan`` and ``Yongsan-gu`` monitoring stations, NO2 concentration in ``Namsan`` monitoring station was lower than ``Yongsan-gu`` monitoring station. For NO2 concentration in ``Bukhansan``, ``Gangbuk-gu`` and ``the whole Seoul``, there were the same pattern in ``Gangbuk-gu`` and the ``the whole Seoul`` and low values in ``Bukhansan`` monitoring station. The correlation factors of NO2 concentration in ``Bukhansan`` and ``Gangbukgu`` was 0.525, 0.549 in 2005, 2006, respectively, which stands for low correlationship.
음식물류폐기물 처리시설에서의 악취발생 특성 및 관리방안
유승성 ( Sung Yoo Seung ),김영두 ( Young Doo Kim ),이준연 ( Jun Yeon Lee ),차영섭 ( Young Seop Cha ),김은숙 ( Eun Sook Kim ),전재식 ( Jae Sik Jeon ),선우영 ( Woo Young Sun ),엄석원 ( Seok Won Eom ),채영주YoungZooChae 한국환경영향평가학회 2012 환경영향평가 Vol.21 No.3
This study is understanding characteristics and analyzing contributions of the odor causing compounds of complex-odor & major specified odor materials, and contribution analysis, caused pre-treatment facilities(input and storage) and post-treatment facilities(heating and drying). The target of this study is feeds-production-facilities, located in Seoul, The averaged complex-odor compounds on the boundary line is 21 times higher, and it is 15 times higher than emission standards, In cracking & collection(pre-treatment facilities), the concentration of compounds is 4,881 times, 2,080 times in drying, and 1,442 times in putting & storing facilities. Ammonia occupies the largest portion of the results of monitoring specified odor compounds in input & storage facilities, followed Acetaldehyde > Hydrogen sulfide > Methyl mercaptan. In cracking & collection, Ammonia also occupies most of odor compounds, followed Methyl mercaptan > Acetaldehyde > Dimethyl disulfide > Dimethyl sulfide > Hydrogen sulfide. Acetaldehyde > Methyl mercaptan in drying facilities, On the boundary line, however, the concentration of specified odor compounds stays below emission standards. The result of contribution analysis is that methyl mercaptan has the highest contribution in input & storage, as well as cracking & collection facilities, followed Acetaldehyde > Hydrogen sulfide > Dimethyl sulfide > Dimethyl disulfide. In the drying facilities, the contribution shows Methyl mercaptan > Acetaldehyde > I-Valeraldehyde and Butyraldehyde. Therefore, to decrease odor in food waste treatment facilities, proper prevention facilities need to be installed and operated, according to characteristics of individual odor compounds, based on monitored data.
수용체 모델(PMF)를 이용한 서울시 대기 중 VOCs의 배출원에 따른 위해성평가
권승미(Seung-Mi Kwon),최유리(Yu-Ri Choi),박명규(Myoung-Kyu Park),이호준(Ho-Joon Lee),김광래(Gwang-Rae Kim),유승성(Seung-Sung Yoo),조석주(Seog-Ju Cho),신진호(Jin-Ho Shin),신용승(Yong-Seung Shin),이철민(Cheolmin Lee) 한국환경보건학회 2021 한국환경보건학회지 Vol.47 No.5
Background: With volatile organic compounds (VOCs) containing aromatic and halogenated hydrocarbons such as benzene, toluene, and xylene that can adversely affect the respiratory and cardiovascular systems when a certain concentration is reached, it is important to accurately evaluate the source and the corresponding health risk effects. Objectives: The purpose of this study is to provide scientific evidence for the city of Seoul’s VOC reduction measures by confirming the risk of each VOC emission source. Methods: In 2020, 56 VOCs were measured and analyzed at one-hour intervals using an online flame ionization detector system (GC-FID) at two measuring stations in Seoul (Gangseo: GS, Bukhansan: BHS). The dominant emission source was identified using the Positive Matrix Factorization (PMF) model, and health risk assessment was performed on the main components of VOCs related to the emission source. Results: Gasoline vapor and vehicle combustion gas are the main sources of emissions in GS, a residential area in the city center, and the main sources are solvent usage and aged VOCs in BHS, a greenbelt area. The risk index ranged from 0.01 to 0.02, which is lower than the standard of 1 for both GS and BHS, and was an acceptable level of 5.71×10-7 to 2.58×10-6 for carcinogenic risk. Conclusions: In order to reduce the level of carcinogenic risk to an acceptable safe level, it is necessary to improve and reduce the emission sources of vehicle combustion and solvent usage, and eco-car policies are judged to contribute to the reduction of combustion gas as well as providing a response to climate change.
전재식,김은숙,유승성,오석률,최한영,Jeon, Jae-Sik,Kim, Eun-Sook,Yoo, Seung-Sung,Oh, Seok-Ryul,Choi, Han-Young 한국환경보건학회 2013 한국환경보건학회지 Vol.39 No.5
Objective: This study was carried out for the purpose of identifying major substances contributing to the production of odor and evaluating the characteristic of odors. Methods: Complex odor and 17 odorous compounds were measured at 18 waste transfer stations located in Seoul. Results: The dilution ratio value of complex odor ranged from 4 to 30 times in the boundary layer of 18 waste transfer stations. At 6 measurement points among the 18 waste transfer stations, the dilution ratio values exceeded standards (15 times). When the results were evaluated in terms of their contribution to the formation of malodor, the patterns indicated that the highest concentration values in the residential waste disposal process were of i-valeraldehyde and acetaldehyde, while butyraldehyde and acetaldehyde accounted for a large proportion of odorous compounds from the waste recycling process. Conclusions: It was found that butyraldehyde and acetaldehyde were the primary compounds released from the food waste disposal process. Overall, aldehyde compounds were the greatest contributor to detectable odor intensity emitted at the waste transfer stations.