齐齐哈尔市PM2.5与气象因素、气体污染物浓度的相关性研究

摘要

根据齐齐哈尔大学监测点2014年3月~2015年5月间的大气实时监测数据及所采集的PM2.5样品的分析数据,研究了监测期间各种气体污染物浓度在不同时段的变化特征,以及气象因素、各种气体污染物浓度之间的相关性.PM2.5质量浓度与气象要素的相关性分析显示,PM2.5质量浓度与大气压、风向呈正相关,与温度、湿度和风速呈负相关.PM2.5质量浓度与气体污染物浓度的相关性分析表明,不同季节PM2.5质量浓度与气体污染物浓度相关性不同,整个监测期间PM2.5质量浓度与SO2、CO、NO2浓度呈现正相关,与O3浓度呈较小的负相关.%The variation characteristics of concentration of several gaseous pollutants during the monitoring in different periods, and the relativity between meteorological factors were studied.The concentration of gaseous pollutants and PM2.5 in Qiqihar atmosphere were analyzed,according to the samples collection of monitoring site of Qiqihar University in March 2014 to May 2015.The correlation between PM2.5 mass concentration and meteorological factors showed that PM2.5 mass concentration was positively correlated with atmospheric pressure and wind direction, and negatively correlated with temperature, humidity and wind speed.The correlation analysis between PM2.5 mass concentration and gas pollutant concentration showed that the correlation between PM2.5 concentration and gas pollutant concentration was different in different seasons.During the monitoring period, the concentration of PM2.5 was positively correlated with the concentrations of SO2, CO and NO2, and negatively correlated with the concentration of O3.