Assessment of Atmospheric Impact of Environmental Governance Policies in Central China

With the launch of China's "Twelfth Five- Year Plan", environmental governance issues have attracted widespread attention in local governments. And the assessment of atmospheric environmental governance across China has also become an important basis for environmental compliance. General weather forecasting models only consider the information of atmospheric pollutants, which ignores the impact of emission reduction measures promulgated by government departments. In order to solve this problem and achieve more exact and realistic assessment, this paper establishes environmental countermeasures impact assessment of central China (Hubei, Jiangsu, Shaanxi and Sichuan) through AIM/Technology and WRF/CMAQ models. The model can combine the basic air pollution data with local government policies to achieve accurate numerical weather prediction. In this work, the air pollution control policies formulated by the four provinces from 2012 to 2014 are used to assess whether the atmospheric environment in 2017 meets the standards. The assessment results show that in the past five years, most of cities with a 10% reduction target in central China can achieve emission reduction targets, but cities with a target of 20% emission reduction target are difficult to achieve the target. Through the assessment of the impacts of atmospheric environmental governance policies in Hubei, Jiangsu, Shaanxi and Sichuan provinces, it proves that our proposed estimation framework is a necessary and effective tool to test the impact of air pollution control in other areas with scarce observation points in China.