联合清洁空气行动和中国空气质量溢出影响
Lin Xiang1, Ying Fan1,2,3, Xueying Yu1,2,3
1School of Economics and Management, Beihang University, Beijing, People's Republic of China.
Journal of the Air & Waste Management Association (1995)
|November 2, 2023
概括
中国的联合清洁空气行动 (JCAA) 由于积极的溢出效应,改善了东部地区的空气质量. 这些空气质量的好处是季节性的,受到风和地形的影响.
科学领域:
- 环境科学 环境科学
- 环境政策 环境政策
- 大气科学 大气科学
背景情况:
- 中国北平原严重的空气污染导致2017年联合清洁空气行动 (JCAA) 启动.
- 之前的研究集中在JCAA的有效性上,忽视了污染和空气质量溢出效应.
研究的目的:
- 实证地研究中国联合清洁空气行动 (JCAA) 的污染和空气质量溢出效应.
- 了解大气运输决定因素对溢出效应的影响.
主要方法:
- 对空气质量变化的实证检查.
- 分析不同方向和季节的溢出效应.
- 评估风向和地形的作用.
主要成果:
- 东部地区的空气质量有所改善,这是由于JCAA的积极空气质量溢出影响.
- 有益的溢出效应持续了两个季节,在秋季和冬季消失.
- 北方,南方和西部方向的空气质量基本保持不变.
- 风的方向和地形显著影响了溢出效应的程度.
结论:
- 联合CAA政策产生了积极的空气质量溢出效应,主要受益于东部地区.
- 空气质量溢出影响的持续时间和程度受季节性因素和大气条件的影响.
- 环境法规要求考虑污染和空气质量溢出影响,以便进行全面的成本效益分析.
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