高原省份城市空气质量状况统计分析及PM_(2.5)污染水平时空分布  

Statistics and Analysis of Air quality Situation and Spatial Distribution of PM_(2.5) in the Plateau Cities in Yunnan

作　　者：邓聪[1] 杨善党 王健[1] 尚云 曾新宇[1] 向峰[1] 

机构地区：[1]云南省环境监测中心站,云南昆明650034

出　　处：《环境科学导刊》2017年第5期40-43,共4页Environmental Science Survey

摘　　要：收集了地处高原的云南省全省8个地级市、8个自治州政府所在地城市共40个监测点2015年全年(2015.01.01—2015.12.31)的大气PM_(2.5)、PM_(10)、SO_2、NO_2、O_3、CO、O_3-8 h日均浓度数据,计算出年均浓度值、空气质量指数AQI,并根据《HJ633-2012环境空气质量指数(AQI)技术规定(试行)》对云南省各州市政府所在地城市空气质量进行评价。PM_(2.5)年均浓度值最高的是文山,为37.89μg/m^3;最低的是丽江,为16.21μg/m^3。空气质量评价结果表明,云南省2015年整体空气质量状况优良,空气质量状况最好的是香格里拉,空气质量指数为35.76;空气质量指数最高的是昭通,为68.26。SO_2、NO_2与PM_(2.5)的关系呈现正相关,PM_(10)的变化趋势与PM_(2.5)的变化趋势较一致。The eight - hour average daily data of PMi5、PMW、SO2、 NO2、O3、CO、O3 from forty monitoring sites of the year 2015 in 16 cities of Yunnan province were applied to calculate the annual average value and air quality index. The air qualities of these cities were assessed based on Technical Regulation on Ambient Air Quality Index （ on trial）》, Wenshan had the highest concentration of PM2.5,which was 37. 89μg/m3. The lowest PM2.5 concentration （16. 21μg/m3） was found in Lijiang. The overall air quality in Yunnan province was very good. The best air quality was in Shangri - La with the air quality index of 35. 76. Zhaotong had the worst air quality index of 68. 26. S02 and NO2 showed positive relation with PM2.5. The changes of PM10 were consistent with that of PM2.5.

关 键 词：高原省份 空气质量 PM2.5 空气质量指数 分布特征 

分 类 号：X51[环境科学与工程—环境工程]