清徐县空气污染特征及其原因简析

Brief Analysis on the Characteristics and Causes of the Air Pollution in Qingxu County

通过对清徐县2007年空气监测数据进行分析,研究了清徐县空气污染特征。结果表明,受清徐县地理特征的影响,空气污染以PM10和SO2为主;气象条件的季节更替致使多数污染物浓度冬季较高、夏季较低,污染指数分布具有明显的季节变化特点:冬季>春季>秋季>夏季。降水量、风速、逆温与污染指数日均值成正相关变化趋势,而污染物浓度的日变化则主要取决于社会经济活动的周期性变化。

After an analysis on the monitoring data of the air of Qingxu in 2007, the paper studies the characteristics of the air pollution. Affected by the geographical features, the air pollutants are mainly PM10 and SO2 and the change of seasons causes the characteristics of pollutions indexes, which is highest in winter, lowest in summer and with spring and autumn in between. The precipitation, wind speed and thermal inversion are positively related to the daily average indexes, while the pollutant concentration is decided by the cyclical change of social and economic activities.