From short-term fluctuations to long-term improvement: A multi-temporal scale and multi-configurational pathway study on air pollution control

IF 6.9 2区工程技术 Q1 ENVIRONMENTAL SCIENCES

Urban Climate Pub Date : 2025-09-29 DOI:10.1016/j.uclim.2025.102624

Zheng Bu , Sheng Zeng , Xingqi Zhao

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引用次数: 0

Abstract

Air pollution has become one of the significant challenges to sustainable development in human society. Based on Air Quality Index (AQI) data from 282 cities in China from 2015 to 2023, this study employs functional data analysis methods and the Hilbert space norm to systematically analyze the dynamic characteristics of AQI across three temporal scales: daily fluctuations, weekly peaks, and monthly averages. Furthermore, using a dynamic panel fuzzy-set qualitative comparative analysis model, exploring multi-configurational pathways for improving AQI at different time scales. The findings indicate that (1) The dynamic characteristics of AQI exhibit significant regional heterogeneity and temporal correlations across different time scales; (2) AQI improvement pathways demonstrate distinct time-scale dependencies: in the short term, the synergy between financial and industrial policies accounts for 85 % of the explained reduction in pollution; in the medium term, green finance and green coverage jointly account for 82.9 % of the explanatory power in controlling pollution peaks; in the long run, the synergy between green finance, urban planning, and ecological construction explains 85.7 % of the sustained improvement. Based on the findings, this study proposes policy recommendations such as enhancing green finance and refining urbanization models to support sustainable economic and environmental development of cities.

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从短期波动到长期改善：大气污染治理的多时间尺度、多配置路径研究

大气污染已成为人类社会可持续发展面临的重大挑战之一。基于2015 - 2023年中国282个城市空气质量指数（AQI）数据，采用功能数据分析方法和Hilbert空间范数，系统分析了AQI在日波动、周峰值和月平均三个时间尺度上的动态特征。此外，采用动态面板模糊集定性比较分析模型，探索不同时间尺度下空气质量改善的多构型途径。结果表明：(1)空气质量动态特征在不同时间尺度上表现出显著的区域异质性和时间相关性；(2)空气质量改善路径表现出明显的时间尺度依赖性：在短期内，金融和产业政策之间的协同作用占已解释的污染减少的85%；中期来看，绿色金融和绿色覆盖合计占控制污染峰值解释力的82.9%；从长期来看，绿色金融、城市规划和生态建设三者之间的协同效应对可持续改善的贡献率为85.7%。在此基础上，本文提出了加强绿色金融、完善城镇化模式等政策建议，以支持城市经济和环境的可持续发展。

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来源期刊

Urban Climate Social Sciences-Urban Studies

CiteScore

9.70

自引率

9.40%

发文量

286

期刊介绍： Urban Climate serves the scientific and decision making communities with the publication of research on theory, science and applications relevant to understanding urban climatic conditions and change in relation to their geography and to demographic, socioeconomic, institutional, technological and environmental dynamics and global change. Targeted towards both disciplinary and interdisciplinary audiences, this journal publishes original research papers, comprehensive review articles, book reviews, and short communications on topics including, but not limited to, the following: Urban meteorology and climate[...] Urban environmental pollution[...] Adaptation to global change[...] Urban economic and social issues[...] Research Approaches[...]