Air Quality Evaluation And Influence Factors Analysis Of Shanghai

With the rapid economic development,pollution currently occurs in atmospheric environment in Shanghai.By in-depth analysis of the current situation of air quality and researching its influence factors,relevant countermeasures and corresponding measures can be formulated to ease or even solve the conflict between the atmospheric environment and social economy development.By collecting the annual average data of air pollution from 1998-April 2019,and selecting inhalable particulate matter,sulfur dioxide and nitrogen dioxide as research factors,the air pollution index method,comprehensive statistical method and comprehensive pollution index evaluation method were used to comprehensively evaluate the air quality in Shanghai.The results show that the air quality is significantly affected by meteorological factors.Secondly,correlation analysis method and the stepwise regression method are used in a detailed study of the impact of Shanghai’s meteorological factors,pollutant emissions and treatment,energy structure and economic development on atmospheric quality.The result shows that:1)Temperature,humidity and wind speed show significant negative correlations with the concentration of pollutants among meteorological factor.2)Pollutant emissions are positively correlated with air pollution.And waste management investment has a negative correlation with air pollution.3)The use of coal has a significant positive correlation with air pollution,the use of natural gas has a significant negative correlation with air pollution.4)Proportion of secondary industry in total economic output of Shanghai has a positive correlation with air pollution,while population density and GDP per capital have negative correlations with air pollution.The factors affecting air quality of Shanghai and trends of atmospheric pollutants are studied to find the correlations of air pollution with energy structure,industrial structure,population density and GDP per capita,which are expected to provide a theoretical reference for the Shanghai government to control air pollution.