塔里木盆地气溶胶粒度分布研究

使用Series 210收集了塔里木盆地内6个不同地点的气溶胶,获取了该地区气溶胶的粒度分布,并计算了对应的气溶胶数量中位直径。研究发现:在自然情况下,气溶胶分布遵循双峰分布的规律,其中第一峰值通常出现在0.5μm附近,第二峰值出现在3μm附近;由于采样点的气象条件、地表情况等差异所致,不同采样地点的峰位和峰面积有一定的差异;各采样点气溶胶分布规律显示,绝大多数气溶胶粒子粒径小于1μm。自然条件下,大多数采样点气溶胶粒子数量中位直径小于1μm。

Size Distribution of Aerosol in Tarim Basin

Aerosols at 6 different spots in Tarim basin using Series 210 were sampled,the particle size distribution was obtained and corresponding count median diameter was calculated.Results indicated that in natural environment,size distribution of aerosols has two peaks,with one locating about 0.5 μm and another locating 3 μm.Unlike the uniform of peak position,the area of peak in the frequency distribution curve was different,which was attributed to the wind direction,wind speed and different earth surfaces.Data of measurement showed that most particle size was smaller than 1 μm.In natural environment,the count median diameter of most samples was smaller than 1 μm.