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부산지역의 다양한 환경적 요인의 변화에 따른 대기오염측정망 평가
유은철,박옥현 한국대기환경학회 2006 한국대기환경학회지 Vol.22 No.4
This study was conducted to understand the change of spatial environmental factors including populations, airpollution source and land-use in Busan, during the period of 1995 and 2004. Firstly, the grids(5 km× 5 km) were-use were marked oneach grid during studying period. Secondly, the SO2, NO2 and O3 concentrations of areas where air qualitymonitoring station was not established were estimated on the basis of these air pollutants measured at close airinvestigate duplication and reduction of existing stations, semivariogram, correlation and cluster analysis werecarried out.This study showed that the population increased in 2004 only on 8 grids compared to in 1995. The spatial changeof SO2, NO2 and O3 was investigated by semivariogram in Busan area. As the results of semivariogram, the spatialchange of SO2 become smaller and simpler, while that of NO2, O3 become larger and more complex in 2004 than in1995. According to the result of correlation and cluster analysis, the reduction of measurement item or therelocation of air quality monitoring station can be needed in the high dense grid area.
부산지역 오존 및 이산화질소 농도의 공간분포해석에 따른 대기오염측정망 배치연구
유은철,박옥현 한국대기환경학회 2004 한국대기환경학회지 Vol.20 No.5
In this study, methodologies for the rational organization of air pollution monitoring network were examined by understanding the characteristics of temporal and spatial distribution of secondary air pollution, whose significance would increase hereafter. The data on O₃ and NO₂ concentrations during high ozone period in 1998~1999 recorded at the nine air pollution monitoring station in Busan were analysed using principal component analysis (PCA) and cumulative semivariogram. It was found that the ozone concentration was deeply associated with the daily emission characteristics or the O₃precusors, and nitrogen dioxide concentration largely depends on the emission strength of regional sources. According to the spatial distribution analysis of ozone and nitrogen dioxide in Busan using cumulative semivariograms, the number of monitoring stations for the secondary air pollution can be reduced in east-west direction, but reinforced in north-south direction to explain the spacial variability. More scientific and rational relocation of air pollution monitoring network in Busan would be needed to investigate pollution status accurately and to plan and implement the pollution reduction policies effectively.