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利用历年兰州市环境质量报告书和有关该市大气环境研究课题、厂矿评价资料和结论，对兰州市区各网格（１０００ｍ×１０００ｍ）点内ＳＯ２年排放量和采暖期排放量分担率分别进行了绘图分析。依据分担率分布特征和盛行风向，定性验证了兰州市区各采样点ＳＯ２监测值的分布特征。
Based on the Lanzhou environmental quality report and the research materials and conclusions about the atmospheric environment of the city over the years, the data of emission and discharge of SO2 in each grid (1000m × 1000m) Drawing analysis. According to the distribution characteristics and prevailing wind direction, the distribution characteristics of SO2 monitoring values of sampling points in Lanzhou city were qualitatively verified.