鞍山市环境空气中PM10、PM2.5污染特征研究

文章对鞍山市环境空气中细颗粒物（PM2.5）、可吸入颗粒物（PM10）季节性变化及月变化污染特征进行分析,不同季节的PM2.5、PM10变化趋势均为夏季〈秋季〈春季〈冬季;PM2.5、PM10的月均质量浓度按高低顺序分别为：12月〉1月〉11月〉2月〉10月〉4月〉3月〉7月〉8月〉6月〉5月〉9月和1月〉12月〉3月〉4月〉2月〉10月〉11月〉5月〉6月〉7月〉8月〉9月。同时,分析了ρ（PM2.5）对ρ（PM10）的贡献率,全年的ρ（PM2.5）/ρ（PM10）平均值为57.8%,结果表明,在PM10中,PM2.5的含量要大于PM2.5-10的含量。

Characteristics of Mass Concentration Variations of PM10 and PM2.5 in Anshan Area

The monitoring results of PM10 and PM2.5 in Anshan Area showed that seasonal variations were the highest concentration in the winter, the second one in the spring, the third one in the autumn and the lowest one in the summer. Month variations were December 〉 January 〉 November 〉 February October 〉 April 〉 March 〉 July 〉August 〉 June 〉 May 〉 September and January 〉 December 〉 March 〉 April 〉 February 〉 October 〉 November 〉 May 〉 June 〉 July 〉 August 〉 September. At the same time, the contribution rate which ineludep （PM2.5 ）too（ PM10 ）is analyzed. The whole year the mean value ofp（ PM2.5 ）/p （PM10） is 57.8%, the result indicated that content in PM10 and the PM2.5 must be bigger than the conten in PM25 - 10.