兰州市2000年污染源分担率分布特征分析

Analysis of Share Percentage Distribution Characteristics of Air Pollutant Source in Lanzhou City in 2000

利用 2 0 0 0年兰州市城区 1km 1km网络化污染源的调查资料 ,对每一网格内影响该市的大气污染源排放量进行了分担率计算 ,结果表明 :兰州城区污染物排放量分担率呈“区域”状连片分布 ,分担率分布广 ,影响范围大 ,从整体看 ,分担率分布出现了 3个中心 ,分别出现在西固电厂南部、城关区铁路局和七里河西站一带 ,与地形走向 ,人口密度分布相一致。

By using the data of air pollution source which was divided into the grid of 1km*1km,we superposed air pollution source emission that influenced Lanzhou city whthin every grids,The results show that share percentage of pollution emission like'area of continuity'.From the whole to see,share percentage existed three central.