Quantification and driving factors analysis of spatio-seasonal variations of unrealized demand for air purification service in Beijing: A risk management perspective. (20th October 2022)

• Record Type: Journal Article
• Authors: Zhang, Lu; Yang, Chunyan; Li, Shijing; Zhang, Zhiqiang; Feng, Chaoyang; Jia, Zongren
• Is Part Of: Journal of cleaner production. Volume 372(2022)
• Publication Date: 2022-10-20
• Subjects: Air pollution -- Ecosystem service -- Risk assessment -- Socio-ecological factor -- Urban green infrastructure; Factory and trade waste -- Management -- Periodicals; Manufactures -- Environmental aspects -- Periodicals; Déchets industriels -- Gestion -- Périodiques; Usines -- Aspect de l'environnement -- Périodiques; 628.5
• DOI: 10.1016/j.jclepro.2022.133635
• Languages: English
• ISSNs: 0959-6526

Abstract

Abstract: Air purification service (APS) supply associated with urban green infrastructure (UGI) are limited in metropolitan areas, yet demand for APS to mitigate air pollution is growing. Consequently, quantifying the unrealized demand (UD) of APS (i.e., the demand exceeded the supply) and exploring its driving factors to maximize human well-being related to air quality from risk management perspective are becoming a new urgent task. Taking Beijing as a case, the study established a UDAPS assessment framework to identify the spatio-seasonal variations of UDAPS, analyze the impacts of socio-ecological factors on UDAPS and their responses to scales, and explore the main driving factors of spatio-seasonal UDAPS variations using Structural Equation Modeling (SEM). Results showed that: (1) UDAPS had distinct spatio-seasonal variations under the district and sub-district scales: central areas > suburban areas, southeast areas > northwest areas, and winter > spring > autumn > summer; (2) UDAPS decreased significantly as fractional vegetation coverage (FVC) and leaf area index (LAI) increased, while increased significantly with nighttime stable lights (NSL), building volume density (BVD) and temperature (T) increased under multiple spatio-seasonal scales; (3) the spatio-seasonal UDAPS variations were dependent on the interaction of socio-ecological factors and their different paths and various impacts: UDAPS variations in summer and autumn were major affected by the FVC and NSL, while by the NSL and T in winter and spring; additionally, the indirect effects of NSL, BVD, LAI and FVC on UDAPS by the mediation of T were identified. Our research is expected to deeply understand the APS and provide some guides on urban APS supply-demand balance. Highlights: 1.Unrealized demand of air purification service (UDAPS ) had spatial variations. 2.UDAPS for city dominated by deciduous trees was highest in the winter. 3.UDAPS was significantly decreased as vegetation increased. 4.UDAPS was significantly increased and human actives and temperature increased.