福建省大气中NO2污染特征研究

abstractBased on the monitoring data of air pollution in nine prefecture-level cities of FujianProvince,this study NO air pollution in Fujian Province from 2015 to 20192To study andanalyze the pollution characteristicsNO2Distribution and variation of mass concentration inFujian Province and analysis of meteorological factorsNO2the effect of mass concentrationchange,and finally summarize the analysis results,and put forward reasonable suggestionsand prospects.The main contents and conclusions are as follows:(1)The air NO in Fujian Province according to the Standard of Ambient Air Quality(GB3095-2012)and Technical Specification for Ambient Air Quality Evaluation(Trial)(HJ663-2013)2Evaluation of quality,NO of Fujian Province from 2015 to 20192Theannual average of quality is up to the national secondary standard.(2)Atmospheric NO in Fujian Province2During the spring and winter of the quarter,it was larger than summer and autumn,and in the second month of the month,the othermonths were in accordance with the "U"pattern ".NO2Quality concentration in Fuzhou,Xiamen,Zhangzhou,Quanzhou these coastal more developed cities are concentrated,followed by Longyan,Sanming coal reserves are higher,industrial more concentrated cities.reflected in the interannual decline since 2017.(3)NO of temperature and rainfall2The influence of mass concentration is obvious,temperature,rainfall andNO2the mass concentration was significantly negatively correlated,among which the temperature influencing factors were significant.Atmospheric Environmental NO in Fujian Province2pollution condition is good,andmaintain a better development trend.Keywords:NO2;pollution characteristics;mass concentration;influencing factors