西安市 PM2.5相关因素多元回归分析模型∗

摘要

为了探索空气污染的主要因素，对空气污染监测指标 PM2.5与 AQI 中其他监测指标进行相关性分析，得到 PM2.5与 SO2、NO2、CO 呈正相关，与 O3和温度呈负相关，同时利用多元回归模型得到PM2.5与主因子的数量关系，给西安市 PM2.5防控提供参考意见.%To explore the main reason of air pollution,we analyzed the correlation between monito-ring index of air pollution PM2.5 and other monitoring indexes of AQI,and found that PM2.5 was associ-ated positively with SO2 ,NO2 ,CO,and negatively with O3 and the temperature.Then we got the numeri-cal relationship between PM2.5 and the main factor according to multiple regression model.The results offers some references to the control of PM2.5 in Xi'an.