福建省大气中SO2污染特征研究

AbstractIn recent years,the environmental problem of atmospheric pollution has graduallyintensified,in order to clearly understand the characteristics of SO2 pollution in the at-mosphere of Fujian Province,this study is based on the data of SO2 concentration inv-arious cities in Fujian Province from 2015 to 2019,to elaborate its spatio-temporalcharacteristics,and to analyze the monthly concentration of SO2 with the correspondingmeteorological factors precipitation and temperature as a double-coordinate graph toexplore the influence of meteorological factors on pollutant concentration.The mainconclusions are:from 2015 to 2019,the monthly SO2 concentration curve in FujianProvince is characterized by a "U"-shaped change,with seasonal differences;the winterand spring seasons are generally higher than the summer and autumn seasons,with theincrease of the year,the level of SO2 concentration decreases;SO2 concentration is sign-ificantly negatively correlated with precipitation and temperature;the change of SO2concentration in Fujian Province has regional characteristics,with lower concentrationsof pollutants in coastal cities and higher concentrations in mountainous cities;using the"ambient air quality standards"(GB3095-2012)evaluation,the annual average SO2pollutant concentration in nine cities in Fujian Province from 2015 to 2019 met thenational standard.Keywords:Fujian Province;SO2 pollution;Spatio-temporal distribution;Meteorological factors