The Analysis of Performance of Total Amount Reduction of Pollutants Emission Based on Logistic Regression Model

Environmental policy is one of the main tools of environmental management for the government, it is very important for performance evaluation. This study is quantitative analysis for the relationship between the various types of environmental policies and the performance of total COD in wastewater emission volumes reducing, to obtain the role of pollution reduction from the support of policy. Based on the results of Logistic model analysis, 5 reduction measures significantly affected the performance in three types of emission reduction targets. Among them, shutting down and relocate the number of enterprises have the greatest contribution to the emission reduction performance, and it followed by the sewage treatment rate, the removing of COD by the new wastewater treatment facilities, the number of projects completed under deadline management, the proportion of secondary industry. The frame measures are very effective and eliminating trailed productivity is the highest efficiency measure in all pollution control measures. Sewage treatment measures in this area also played a key role in pollution reduction; the sewage charging policy plays a key role in economic management. The adjustment of economic structure is concerned with pollution reduction. The more proportion of secondary industry covers, the more difficulty emission reducing is. Therefore, the government should pay more attention on the adjustment of industrial structure and strengthen the sewage treatment capacity to improve the performance of total amount reduction of pollutants emission.