2008年春季呼和浩特沙尘天气与TSP和PM_(10)污染的关系

Study on Relation between Dust Weather and TSP and PM_(10) Pollution of Huhhot in 2008 Spring

利用TSP和PM10逐时监测数据,对2008年春季呼和浩特市TSP和PM10浓度的变化及其在沙尘天气过程中的相关性进行了分析,结果表明:(1)2008年春季TSP和PM10浓度值多高于国家环境空气质量二级标准,沙尘天气是影响空气环境质量的主要诱因。(2)TSP和PM10浓度在沙尘暴发生当日及前后几天均会有不同程度的增加,且以沙尘天气发生当日浓度最大。TSP和PM10浓度3月份最低,4月份次之,5月份最高。(3)不同沙尘天气过程中,TSP和PM10浓度相差明显,且TSP与PM10/TSP值随沙尘天气强度的增加而增大,PM10在不同沙尘天气过程中均为主要组成成分。(4)沙尘天气过程中TSP与PM10呈线性相关。

Based on the hourly observational data of TSP and PMio in 2008 during the spring season, the concentration variety and correlation between TSP and PM10 in huhhot area during dust weather periods are analyzed. The results show： （1） The concentration of TSP and PM10 were more than that of second standard of national environment air quality, the principal reason that affected environment air quality was dust weather. （2） The concentration of TSP and PM10 all increased differently in sand-dust weather and before or next days,and the concentration value was biggest at the dust weather. The concentration of TSP and PM10 was smallest on March, second place on April and biggest on May. （3） The concentration of TSP and PM10 were evidence difference in different dust weathers,and the value of concentration of TSP and PM10 increased with the increase of degree of dust weather, the main constituents was all PM10 in different dust weather. （4） There was linear correlation between PM10 and TSP during dust weather.