2016年兴义市细颗粒物时空分布特征研究

Analysis on the Spatial and Temporal Distribution of PM2.5 in Xingyi in 2016

根据2016年兴义市PM_(2.5)监测数据,系统分析了兴义市PM_(2.5)污染物的时空分布特征。结果显示:2016年全市PM_(2.5)年均浓度为24μg/m^3,低于年均35μg/m^3的国家标准限值;PM_(2.5)浓度由高到低的季节依次是冬季、春季、秋季和夏季;空间分布上PM_(2.5)呈现明显的东北向东南梯度分布特征。

according to the PM2.5 monitoring data of Xingyi in 2016, The temporal and spatial distribution characteristics of PM2.5 pollutants in Xingyi city were analyzed. Results show： In 2016 the city＇s annual average concentration of PM2.5 was 24μg/m^3, Below the limit of an average of 35μg/m^3 national standard; PM2.5 concentration from high to low in winter, spring, autumn and summer; The spatial distribution of PM2.5 showed obvious gradient distribution characteristics of northeast to southeast.