Study On Comprehensive Evaluation And Control Countermeasures Of Atmospheric Environmental Quality In Beijing-Tianjin-Hebei

In the new era,with the economic development and social progress,the living standard of the people is increeasing,and the demand for a better living environment is also incerasing.However,at present,China is facing a great imbalance between economic development and ecological environment protection.The problem of air pollution is prominent,which has a great impact on people's production and life,and at the same time,the constraints on economic and social development are also more and more significant.Atmospheric environment is an important part of regional development.Scientific and accurate atmospheric environmental quality assessment is the basis of air pollution control.Therefore,the evaluation and optimization of regional atmospheric environment quality has received more and more attention from academics and governments at all levels in recent years.Under the strategic goal of coordinated development,Beijing-Tianjin-Hebei region put forward higher requirements for the quality of the atmosphere.In this context,a systematic study of the atmospheric environmental quality assessment of Beijing-Tianjin-Hebei is carried out from the perspective of improving atmospheric environmental quality.Based on the theory of sustainable development and coordinated development and reference to the domestic representative evaluation index system,we set up an evaluation index system of atmospheric environmental quality from the six aspects of economic development,social development,energy utilization,emission control,air quality and policy regulation.The paper analyzes the results of atmospheric environmental quality assessment of Beijing-Tianjin-Hebei from three aspects of time evolution,spatial classification and cause analysis.On this basis,the grey prediction model GM(1,1)is applied to predict the atmospheric environmental quality in Beijing-Tianjin-Hebei region and targeted measures for improving atmospheric environment are put forward.The research results show that the atmospheric environmental quality in Beijing-Tianjin-Hebei region has shown a small fluctuation trend on the whole.Theatmospheric environment quality in Beijing-Tianjin-Hebei region is divided into four grades:The best of atmospheric environment quality is Beijing;The better are Tianjin,Langfang;The general are Tangshan,Qinhuangdao,Cangzhou,Baoding,Shijiazhuang;The worse are Handan,Hengshui,Xingtai,Zhangjiakou and Chengde.Through spatial autocorrelation analysis,with the gradual advancement of Beijing-Tianji-Hebei regional integration,the correlation of atmospheric environmental system between cities of Beijing-Tianjin-Hebei region is gradually increasing.Due to the different transport conditions of air pollutants in Beijing-Tianjin-Hebei region,the citys with low assessment of atmospheric environmental quality,such as Zhangjiakou,Chengde,Qinhuangdao and cangzhou,whose air pollutant transmission conditions are favorable,so the overall air quality is good.Some cities,such as Beijing,Baoding and Tangshan,due to the poor transmission conditions of atmospheric pollutants,although the quality of the atmospheric environment is high,the air quality is relatively poor.The air pollution control can only be achieved by optimizing the industrial structure,reducing energy consumption and controlling emissions.According to the forecast results of the comprehensive index of atmospheric environmental quality in the Beijing-Tianjin-Hebei region in 2020,the quality of atmospheric environment in Beijing,Tianjin,Langfang,Hengshui,Zhangjiakou and Chengde has a trend of gradual improvement.Tianjin has the largest increase,and will increase by 48.8% in 2020 than in 2015.The quality of atmospheric environment in other cities has declined in varying degrees,which is a wake-up call for the prevention and control of air pollution.