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Characteristics of Ozone Precursor Emissions and POCP in the Biggest Port City in Korea
송상근,손장호,손현근 한국대기환경학회 2015 Asian Journal of Atmospheric Environment (AJAE) Vol.9 No.2
Emissions of ozone precursors (NOx and VOCs) and photochemical ozone creation potentials (POCPs) of VOC emission sources were investigated in the largest port city (i.e., Busan), Korea during the year 2011. This analysis was performed using the Clean Air Policy Support System (CAPSS) national emission inventory provided by the National Institute of Environmental Research (NIER), Korea. For NOx, the emissions from off-road mobile sources in Busan were the most dominant (e.g., 31,202 ton yr-1), accounting for about 60% of the total NOx emissions. The emission from shipping of off-road mobile sources (e.g., 24,922 ton yr-1) was a major contributor to their total emissions, amounting to 47% of the total NOx emissions due to the port-related activities in Busan. For VOCs, the emission source category of solvent usage was predominant (e.g., 36,062 ton yr-1), accounting for approximately 82% of the total VOC emissions. Out of solvent usages, the emission from painting was the most dominant (22,733 ton yr-1), comprising 52% of the total emissions from solvent usages. The most dominant VOC species emitted from their sources in Busan was toluene, followed by xylene, butane, ethylbenzene, n-butanol, isopropyl alcohol, and propane. The major emission sources of toluene and xylene were found to be painting of coil coating and ship building, respectively. The value of POCP for the offroad mobile source (61) was the highest in ten major activity sectors of VOC emissions. Since the POCP value of ship transport of off-road mobile source (72) was also high enough to affect ozone concentration, the ship emission can play a significant role in ozone production of the port city like Busan.
시스템 다이내믹스를 이용한 부산항 환적물동량 예측모델에 관한 연구
송상근,류동근 한국항해항만학회 2014 한국항해항만학회 학술대회논문집 Vol.2014 No.춘계
본 연구는 부산항에서 차지하는 환적물동량의 위상을 고려하여 환적화물에 대한 정확한 예측을 위한 모델을 수립하는데 그 목적이 있다. 환적물량을 결정짓는 요소로는 부산항의 경쟁력 뿐 아니라 중국 등의 수출입 물동량 증가량과 중국항만의 경쟁력도 중요요소이며, 이들 요소들이 상호간에 영향을 주고 받음에 따라 그러한 순환적 인과관계 분석에 적합한 시스템 다이내믹스(SD) 기법을 활용하여 환적화물에 대한 예측을 시도해 보고자 한다.