大气污染物及AQI时空特征分析——以山西省2015年上半年为例  

Spatial and Temporal Characteristics Analysis of Air Pollutants and AQI in Shanxi Province in the First Half of 2015

作　　者：赵衍君 韩朴[1] 吴林[1,2] 王宇坤[1,3] 

机构地区：[1]青海师范大学生命与地理科学学院,青海西宁810008 [2]中国科学院遗传与发育生物研究所农业资源研究中心,河北石家庄050021 [3]中国科学院地理科学与资源研究所,北京100101

出　　处：《环境保护科学》2016年第3期94-102,共9页Environmental Protection Science

摘　　要：根据2015年上半年山西省11个地级市PM 2.5、PM10、NO2、SO2、CO 、O3的日污染浓度监测数据及AQI值,分析其污染特征.结果表明：全省11市PMm 、PMiO超标率较高;NO 2、SO2、CO 、O3超标率则较低;全省PM2.5/PM10.的比值范围在0 .3677 - 0 .7189 ,且PM2.5和PM10i 间存在较显著的线性关系;PM2.5、PM10、NO 2、SO2、CO 以及AQI监测值在1 - 6月份逐渐递减,O3则呈总体上升趋势;AQI达标天数比例范围在61.8 8 % - 85.08% ,平均比例为71.42% ,平均超标天数比例为38.58% ,其中重度及以上污染天数比例为1.5.%.In this paper, pollution characteristics were analyzed according to the daily pollution concentration monitored dataof PM2 .5 , PM10, NO2 , SO2 , CO, O3 and AQI in 11 prefecture-level cities in Shanxi Province in the first half of 2015. The resultsshowed that the over standard rates of PM2 5 and PM10 were high in all cities, while the over standard rates of NO2, SO2, CO and O3were low. In the whole province, the ratio range of PM^/PM!.was 0.3677~0.7189 and there was a significant linear relationshipbetween PM2.5 and PMW. The monitoring values of PM2.5 , PMW, N〇2 , S〇2 , CO and AQI decreased gradually from January to June,while that of O3 showed an upward trend. The proportion range of the days with AQI adhere to the standard was 6 1 .8 8 % ？85.08%and the average proportion was 71.42% . The average proportion of the days with AQI exceeding the standard was 38.58% and theproportion of the days with severe or more serious pollution accounted for 1.50%.

关 键 词：山西省 大气污染物 颗粒物 AQI 污染特征 

分 类 号：X51[环境科学与工程—环境工程]