Urban road dust risk assessment based on resilience governance

ZHU Xi; LIU Si-qi; HUANG Shan; SONG Si-yuan; WANG Qian; ZHANG Qiu-yue

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China Environmental Science ›› 2026, Vol. 46 ›› Issue (1) : 579-592.

Environmental Impact Assessment and Management

Urban road dust risk assessment based on resilience governance

ZHU Xi^1,2,3, LIU Si-qi^2,4, HUANG Shan^1,3, SONG Si-yuan^1,3, WANG Qian^1,3, ZHANG Qiu-yue^1,3

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Abstract

Dust pollution data (particles<920μm) collected across China from 2000 to 2023 were integrated. The results showedthat heavy metal contamination in road dust was generally higher than in soils,yet evaluation methods produced inconsistent conclusions. Therefore, a risk assessment system tailored to the unique characteristics of dust was considered essential.The spatial distribution of urban road dust pollution in China showed a steadily increasing severity from the northwest to the southeast, and pollution sources were found to be complex. Source control alone was found to be insufficient to ensure long-term effectiveness, necessitating an adaptive governance approach. Based on the resilience governance concept, anovel urban road dust pollution risk assessment system was constructedusing the Pressure-State-Response (PSR) model, Analytic Hierarchy Process (AHP), and entropy weight method, incorporating a socio-ecological perspective. An empirical analysis of 31 cities classified them into five clusters: high-pressure-risk, high-response-risk, combined high-state-response-risk, combined high-state-pressure-risk, and low-risk—yielding tiered and category-specific recommendations: priority population-exposure studies in dense traffic areas, establishment of dust-monitoring and feedback networks, targeted abatement of centralized emission sources, enhanced early-warning systems for extreme-weather dust events, and fixed-site surveillance in sensitive zones.

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road dust / pollution characteristics / urban ecological resilience / PSR model / risk assessment system

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ZHU Xi, LIU Si-qi, HUANG Shan, SONG Si-yuan, WANG Qian, ZHANG Qiu-yue. Urban road dust risk assessment based on resilience governance[J]. China Environmental Science. 2026, 46(1): 579-592

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