The Influence Factors Of China's Urban Air Quality Analysis

With the rapid development of our society and economy,the process of urbanization,industrialization,China's emissions of pollutants are rapidly raised,this further deterioration in air quality problems.Improving air quality,reducing pollution emissions in the atmosphere,establish economic and environment friendly society has become a major problem in the process of transformation and upgrading of our country's economy.Our country is a coal-fired power,coal production and consumption is huge,uneven distribution of resources,energy,mining technology utilization level is low,the parts of our country energy denudation,use resources inefficiently.In addition,China also faces a provincial regional unbalanced economic development between the problem,in different regions to attract foreign investment,speed up the development of regional economy,caused by foreign direct investment threshold is too low,some region environment adversely affect enterprise introduction,while speeding up the pace of the local economy development,but further deterioration of the atmospheric environment has also caused serious negative effect.The rapidly developing economy also contributes to the increase of energy consumption and emission,which seriously affects the realization of China's goal of energy conservation,emission reduction and green harmonious development.At the same time.In the process of economic development,our country some of the major pollutants such as sulfur dioxide emissions,YanFenChen emissions,emissions of carbon monoxide and nitrogen oxide emissions are still in a higher position,to achieve the reduction of exhaust emissions and the improvement of environmental quality,makes the task more difficult and complex.Under this background,this article from the perspective of scientific inquiry in our air quality and precipitation,relative humidity,temperature and exhaust emissions,green area,and at the end of the actual public(steam)trolley operating vehicle number,analysis the influence factors of air quality in our country,to adjust the regional industrial structure and achieve coordinated economic development and environmental protection is of great importance.In reference on the basis of relevant research experience,this paper intends to use the traditional variable coefficient panel data model,PA from precipitation,relative humidity,HR,temperature T and green area GAR,emissions ET,at the end of the actualvehicle number N public(steam)tram operation point of view,is divided into two aspects of natural factors and human factors to examine our country 2006-2016,precipitation,relative humidity,temperature and green area,emissions,and at the end of the actual public(steam)trolley operating vehicle number each influence factors such as spatial dynamic characteristics of the urban air quality,the main purpose is to use a panel data estimation analysis difference of urban air quality,this article first introduces the research background,research significance and research method and research content of this article,then briefly introduces the related concepts mentioned in the article and article using the influence factors of indicators,and the basic concept was defined,then,the current situation of urban air quality in China the status quo analysis,from two aspects of time and space analysis of the spatial and temporal characteristics of the urban air quality in China,as well as the present situation of the various factors affecting the characteristic;Then the empirical analysis is made on the air quality and its influencing factors in China.From human factors and natural factors two aspects has carried on the empirical analysis,first of all details in this paper,the selection of variables and data sources,and second,focus on model identification and analysis of the construction of air quality is better than 2 days and precipitation,relative humidity,temperature,exhaust emissions,at the end of the actual number of vehicles,public(steam)tram operation as well as the related model of green area,on the basis of using the correlation test,finally draw a panel data model related situation,the relationship between specific have the following several aspects:(1)through the research of the urban air quality dynamic,in a series of unit root test,Kao co-integration test,hausmann Hausman test and F statistic test,should be under 5%significance level to assume h01-2 and H02,so should choose variable coefficient model.Moreover,the optimal degree of goodness of fit is the largest.In addition,for the purpose of this article to determine the number of times smaller than the area of section number of panel data,this article selects point variable coefficient model can better the dynamic characteristics of the urban air quality for the corresponding research.And variable coefficient model of the statistical value of 30.12 J,corresponding confidence level is greater than the critical value,reject exists in recognition of the original assumption,and is effective for instrumental variable Settings,this explains well considering lag factorsmodel can better explain the influence factors of the urban air quality research.(2)the provinces in our country whether emissions,at the end of the actual public(steam)trolley operating vehicle number,green area human factors or precipitation,relative humidity,temperature natural factors that affect on the air quality is better than 2days for air agent of quality indicators have different degrees of influence,in addition,the exhaust emissions,at the end of the actual public(steam)trolley operating vehicle number,green area and man-made influence precipitation,relative humidity,temperature natural factors,respectively,and the air quality is better than 2 days for air quality there is a long-term equilibrium relationship between proxy index.(3)It can be seen from the value of each period that the value of each year has a great influence on the value of the next year,which is in line with the practical significance.Explain it from the variable coefficient of this perspective,the air quality of different factors on the provinces the influence degree of the size is different,and the influence factors of different size in each period to the influence degree of the air quality is also different.