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자동차 평균통행속도 적용방식에 따른 대기오염 배출량 비교 연구
조규탁 한국대기환경학회 2005 한국대기환경학회지 Vol.21 No.4
scales-Seoul province, 25 counties and hundreds of grids (1 km\ 1 km). First, the emissions at each spatial scalewas calculated by using the road network and the travel volume and speed of each link modeled by travel demandmodel (TDM). Second, the emission at each spatial scale was calculated on the basis of average speeds estimatedby using three kinds of averaging method. These are called the provincial, volume-delay function(VDF) and zonalmethod, respectively. Third, three kinds of emissions and those by TDM are compared each other at three spatialscales. In Seoul (provincial scale), three kinds of emissions are less than those by TDM, but the differences ofTDM from three speed averaging methods (SAMs) are small. The relative ratios of three SAMs to TDM are88~ 90% in CO, 99~ 100% in NOx, 84~ highest correlation between TDM and three SAMs and the zonal method among three SAMs was proven to be thehighest correlation with TDM. NOx showed the coefcients (R2) greater than 0.9 in all three SAMs but CO andVOC showed the coefcients (R2) greater than 0.9 in only zonal method. Slopes of correlations of all pollutants‘1’, but those of CO and VOC showed the values less than 0.85. At grid scale, correlations between TDM and threeSAMs were not high. CO showed 0.68~ 0.77 in R2s and 58~ 0.68 in slopes. NOx showed 0.90~ 0.94 in R2s and0.86~ 0.94 in slopes. VOC showed 0.56~ 0.70 in R2s and 0.48~ between TDM and three SAMs in grid scale. This study showed that there is the most suitable method forcalculating the average travel speed at each spatial scale and it is thought that the zonal method is more suitablethan the VDF or provincial method.
BEIS와 CORINAIR 산출방법에 의한 자연식생 VOC 배출량 산출 비교 연구
조규탁,김조천,홍지형 한국대기환경학회 2006 한국대기환경학회지 Vol.22 No.2
In this study, a fundamental work for developing a biogenic Volatile Organic Compounds (BVOC) emissionmodel in Korea has been carried out. Two different approaches, Biogenic Emission Inventory System(BEIS2) andCORINAIR Methodology (CORINAIR) were compared for estimating BVOC emissions. It was found that BEISand CORINAIR showed very similar results each other. BVOC emissions estimated by two different methods wereBEIS and CORINAIR were larger than those on a national and regional (provincial) scale, especially in summerseason (June, July and August). Although BEIS and CORINAIR are quite different techniques to correct theenvironmental conditions, they revealed similar results. Therefore, it is proven that both the methods are able to beapplied to the estimation of the BVOC emissions in Korea.