Research On The Factors Affecting Regional Smog InChina

At present,China’s environmental problems are getting more and more people’s attention,especially the air pollution problem.The smog that broke out in 2013 made “smog” a focus of attention,and nowadays the increasingly serious smog pollution makes it imperative to improve the ambient air quality.In order to develop a scientific and effective environmental policy,the first task is to identify the key factors affecting air pollution.Therefore,this paper takes the PM2.5 concentrations of 30 provinces in China from 1998 to 2016 as the research object,and reasonably identifies the influencing factors of smog pollution according to the theory.Through the global and local spatial correlation test,it is found that smog pollution in China has significant spatial spillover effects and spatial characteristics of high-high(low-low)aggregation.And the key drivers of smog pollution are analyzed using static and dynamic spatial Durbin models.The study found that there is a significant inverted U-shaped curve relationship between smog pollution and economic growth.The industrial structure with high proportion of the second industry,urbanization measured by urban population,and coal-based energy structure are significant,which have aggravated the smog pollution in our country.And through the method of dynamic spatial Durbin model,it is also found that the smog pollution in China is time-dependent due to the significant influence of its lag term.Therefore,in view of the spatial spillover effect and time lag effect of smog pollution in China,it is necessary to strengthen regional joint prevention and control when managing smog.And it is also supposed to optimize industrial structure,achieve clean and efficient use of resources,rationalize urbanization,and encourage public transportation and new energy vehicles.