保定市可吸入颗粒物污染特征研究

Study on Pollution Characteristics of PM_(10) in Baoding

[目的]基于保定市空气中可吸入颗粒物质量浓度严重超标的现状,开展此次污染调查分析.[方法]利用保定市6个监测点2013年8月19～11月30日的连续观测资料,对保定市大气中的PM10质量浓度变化规律进行统计分析.[结果]PM10质量浓度在44～720μg/m3,均值在225 μg/m3,达标率为44.1％,总体污染水平较高.监测期间,8月空气质量最佳,9月次之,11月空气质量最差;各监测点PM10质量浓度略有差异,表现为：市监测站＞胶片厂＞接待中心＞华电二区＞地表水厂＞游泳馆.PM2.5/PM10在22.0％ ～ 80.6％,均值在54.4％,PM2.5/PM10数值高,空气污染严重,对人体健康危害大.PM2.5和PM10呈正相关,相关方程为：PM2.5=0.674 46×PM10-22.760 75（R2 =0.957 2）表明两者有相同或相近的污染源.[结论]该研究可为保定市控制细颗粒物的污染水平、交通能源政策的制订及环保措施的落实提供科学依据.

[ Objective] To investigate the pollution on the basis of PM10 concentration in air of Baoding City which is much higher than the standard level. [ Method] To analyze PM10concentration change laws in the local area on the basis of continuous observational data from Au- gust 19 to November 30 in 2013 in 6 monitoring stations. [ Result] PM10 concentration was 44 -720 μg/m3 , the mean was 225 μg/m3 , the standard rate was 44.1%, the overall pollution rate was higher. During the monitoring period, air quality was the best in August, then in Sep- tember, the worst in November. PM10 concentration varied from monitoring stations, city monitoring station 〉 film factory 〉 reception center 〉 No. 2 Huandian School 〉 water plant 〉 swimming pool. PM2 JPM10 was 22.0% - 80.6%, the mean was 54.4%. Higher value of PM2 5/PM10 means more serious air pollution, and more serious damages to human health. PM2.5 and PMIo were positively related, PM25 = O. 674 46 x PM10 - 22.760 75 （ R2 = O. 957 2 ） means that boih of them have the same or similar pollution sources. [ Conclusion ] The research provided a scientific support for controlling pollution level of fine particles, making transportation and energy policies and environmental protec- tion measures.