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Assessing the effectiveness of pm2.5 pollution control from the perspective of interprovincial transport and pm2.5 mitigation costs across China

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Environmental Science and Ecotechnology 2024年第6期22卷 168-177页

作者： Yihao Wang Xuying Wang Zeyuan Liu Shaoliang Chao Jing Zhang Yixuan Zheng Yu Zhang Wenbo Xue Jinnan Wang Yu Lei Center of Air Quality Simulation and System Analysis Chinese Academy for Environmental Planning100012BeijingChina College of Environmental&Resource Sciences Zhejiang UniversityHangzhou310058China State Environmental Protection Key Laboratory of Environmental Planning and Policy Simulation Chinese Academy of Environmental PlanningBeijing100012China Technical Centre for Soil Agriculture and Rural Ecology and EnvironmentMinistry of Ecology and EnvironmentBeijing100012China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing100012China

Due to the transboundary nature of air pollutants,a province's efforts to improve air quality can reduce pm2.5 concentration in the surrounding *** inter-provincial pm2.5 pollution transport could bring great challenges to related environmental management work,such as financial fund allocation and subsidy policy ***,we examined the transport characteristics of pm2.5 pollution across provinces in 2013 and 2020 via chemical transport modeling and then monetized inter-provincial contributions of pm2.5 improvement based on pollutant emission control *** found that approximately 60%of the pm2.5 pollution was from local sources,while the remaining 40%originated from outside ***,about 1011 billion RMB of provincial air pollutant abatement costs contributed to the pm2.5 concentration decline in other provinces during 2013-2020,accounting for 41.2%of the total abatement *** with lower unit improvement costs for pm2.5,such as Jiangsu,Hebei,and Shandong,were major contributors,while Guangdong,Guangxi,and Fujian,bearing higher unit costs,were among the main *** study identifies provinces that contribute to air quality improvement in other provinces,have high economic efficiency,and provide a quantitative framework for determining inter-provincial *** study also reveals the uneven distribution of pollution abatement costs(pm2.5 improvement/abatement costs)due to transboundary pm2.5 transport,calling for adopting inter-provincial economic compensation *** mechanisms ensure equitable cost-sharing and effective regional air quality management.

关键词： pm2.5 Air pollution pm2.5 abatement cost Economic indicator Inter-provincial transport Economic compensation

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