太原市大气中PM10的监测与分布

2001年3月下旬，在太原市建成区均匀布设15个网格点，使用便携式空气质量监测仪，连续5天监测了各点大气中可吸入颗粒物（PM10）的浓度。结果表明：监测期间PM10的浓度范围为0．191－0．660mg/m^3，全市日平均浓度为0．373mg/m^3，上午平均值是下午的2倍；PM10浓度空间分布整体上比较均匀，不同功能区的污染程度依次为：电厂＞化工工＞太钢工业区＞校园商业区＞太行居民我。着重探讨了污染现状的成因，并提出了改善大气质量的建议。

Measurements and Distribution of PM_(10) in Air of Taiyuan

With new portable instruments, measurements on the concentration of inhalable particulates (PM 10 ) were carried out at 15 evenly divided grids in the constructed area of Taiyuan for continuous 5 days in March of 2001. The results showed that the concentration of PM 10 in the 15 sites ranged from 0.191mg/m 3 to 0.660mg/m 3; the daily average concentration of the whole city was 0.373mg/m 3; the morning average concentration was 2 times higher than the afternoon average. In a whole, the spatial distribution of PM 10 in the city looked even. The rank of concentrations at different function areas was: Chemical industrial area>industrial area>Commercial area>Residential area. The causes of PM 10 distribution formation were analyzed and some suggestions were proposed to improve the air quality.