摘要
本文采用概率统计及回归方程显著性对比检验的方法,对采暖和非采暖期大气飘尘的质量浓度及质量粒径分布类型进行了研究和探讨,结果表明:乌鲁木齐市大气飘尘的质量浓度及质量粒径分布类型均为标准正态分布。飘尘质量粒经分布呈“驼峰形”,两峰对应的粒径区间分别为0—0.38um 和5.78—7.92um,两峰包含的质量为总质量的50%以上。非采暖期飘尘中粗粒(>1.50um)的质量是细粒(≤1.50um)质量的1—1.9倍,采暖期细粒子的分担率达53.9%。飘尘占颗粒物的百分率,非采暖期为42.1%,采暖期为54.6%。
The distributions of mass content and mass diameter of the aerosol in the atmosphere is analysized with regard to the period of heating or not by way of probablity Statistics and Regression Analysis. The result show that the distributions of mass content and mass diameter submit to Normal Distribution.The distribution of aerosol mass contents is in the shape of hump.
出处
《新疆环境保护》
1990年第4期7-13,共7页
Environmental Protection of Xinjiang
