中央环保督察与地方大气质量改善——基于多期双重差分法的检验  

Central inspection of ecological and environmental protection and the improvement of local air quality:Evidence from using multi-phase difference-in-difference method

作　　者：陈迪[1] 张梅 王玥[1] 石磊[1] 马中[1] 陆根法[2] CHEN Di;ZANG Mei;WANG Yue;SHI Lei;MA Zhong;LU Genfa(School of Environment and Natural Resources,Renmin University of China,Beijing 100872,China;State Key Laboratory of Pollution Control and Resources Reuse,School of the Environment,Nanjing University,Nanjing 210023,China)

机构地区：[1]中国人民大学环境学院,北京100872 [2]南京大学环境学院,污染控制与资源化研究国家重点实验室,南京210023

出　　处：《科技导报》2022年第4期55-63,共9页Science & Technology Review

基　　金：国家重点研发计划项目(2018YFC0213702);中国人民大学2019年度拔尖创新人才培育资助计划项目。

摘　　要：采用2014—2018年中国225个地级市的面板数据,以各地市当年PM_(2.5)、PM_(10)、NO_(2)、SO_(2)、CO、O_(3)的年均浓度作为被解释变量,通过多期双重差分的方法检验了中央环保督察制度在改善地方大气质量方面的政策效果及其持续性。研究发现:中央环保督察对PM_(10)、SO_(2)和CO的浓度改善具有显著作用;在政策效果持续性上,相比PM_(10),中央环保督察对地方SO_(2)、CO浓度的改善更具有持续性。建议进一步常态化中央环保督察制度以持续推动地方大气环境质量改善,关注移动源、建设工程扬尘与二次污染物防治以推动多类大气污染物的减排,实现空气质量的综合提升。As an important measure to strengthen the local government’s enforcement in the environmental protection and to promote the national sustainable air pollution control,using the panel data of 225 prefecture-level cities in China from 2014 to 2018,this paper analyzes the policy effect of the central environmental protection inspection on the local air quality improvements by applying the multi-phase difference-in-differences method.It is shown that the central inspection of the ecological and environmental protection has a significant effect on the reduction of PM_(10),SO_(2),and CO;a continuous effect on the reduction of the local SO_(2) and CO;while it does not work well for the sustainable reduction of PM_(10).For the improvement of the local air quality,we suggest to further implement the Central Inspection of Ecological and Environmental Protection,and to pay more attention to the control of the mobile sources pollution,the construction dust,and the secondary air pollutants.

关 键 词：中央环保督察 地方政府 大气质量 多期双重差分 

分 类 号：X51[环境科学与工程—环境工程]