佳木斯大气污染物扩散影响因素及区域探究

对影响佳木斯市大气污染物扩散的因素进行了分析。结果表明,大气稳定度、垂直和水平温度梯度、低空风场引起的平流动力输送、地面粗糙度、湍流运动、雨雾等都不同程度地影响大气污染物的扩散,以一定的传输和扩散规律决定城市大气污染水平的高低,并由此使局部区域污染程度各不相同。城市热岛效应和温度层结是影响大气污染物扩散的重要因素。影响区域主要为城市主导风向下风向的城市东部地区。

Research on the Dispersion Factors and Regional Distribution of Air Pollution in Jiamusi

Factors affecting the diffusion of atmospheric pollutants include atmospheric stability,vertical and horizontal temperature gradient, stratospheric altitude wind power caused by transport, surface roughness, turbulence, rain and fog and so on. These factors have varying degrees of impact on the diffusion of atmospheric pollutants in Jiamusi City, the transmission and spread of certain laws decided Jiamusi level of air pollution, and thereby the degree of pollution in each local area Jiamusi different. Urban heat island effect and temperature stratification is an important factor in Jiamusi City. The main area of influence is the east area of Jiamusi which is at the downwind direction of the city.