信阳市PM_(2.5)和PM_(10)污染特征及其与气象因子的关系

PM_(2.5) and PM_(10) Pollution Characteristics of Xinyang City and Relationship with Meteorological Factors

以信阳市2015～2016年PM_(2.5)、PM_(10)监测数据和同期气象资料为基础,分析了其PM_(2.5)、PM_(10)污染特征及其与气象因子关系。结果表明:PM_(2.5)、PM_(10)月均质量浓度呈"单峰单谷"变换趋势,不同季节质量浓度差异显著,均表现为冬季>春季、秋季>夏季的季节动态;PM_(2.5)、PM_(10)质量浓度与气象因子关联度均较高,其质量浓度受多种气象因子共同影响;采用逐步回归法,建立了PM_(2.5)、PM_(10)质量浓度—气象因子最优回归方程,方程拟合度高,适用性强。

Based on the PM2.5,PM10 monitoring data and synoptic data of Xinyang City from 2015~2016,this paper analyzed the characteristics of PM2.5 and PM10 pollution and the relationship with the Meteorological factor.The results show that:The seasonal variation of PM2.5 and PM10 were significant.The results showed that the seasonal variation of PM2.5 and PM10 was significant in spring and autumn.The season dynamics is winter>spring,autumn>summer season dynamics.PM2.5 and PM10 mass concentration and meteorological factors are high degree of correlation.The concentration of the mass was affected by a variety of meteorological factors.The stepwise regression method was used to establish the optimal regression equation of PM2.5,PM10 mass concentration meteorological factor.The equation has high fitting degree and strong applicability.