Tang Wenfu, Emmons Louisa K, Wiedinmyer Christine, Partha Debatosh B, Huang Yaoxian, He Cenlin, Zhang Junzhe, Barsanti Kelley C, Gaubert Benjamin, Jo Duseong S, Zhang Jun, Buchholz Rebecca, Tilmes Simone, Vitt Francis, Granier Claire, Worden Helen M, Levelt Pieternel F
Atmospheric Chemistry Observations and Modeling Laboratory, NSF National Center for Atmospheric Research, Boulder, CO 80301, USA.
Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Boulder, CO 80309, USA.
Sci Adv. 2025 Mar 14;11(11):eadr2616. doi: 10.1126/sciadv.adr2616.
Fires in the wildland-urban interface (WUI) are a global issue with growing importance. However, the impact of WUI fires on air quality and health is less understood compared to that of fires in wildland. We analyze WUI fire impacts on air quality and health at the global scale using a multi-scale atmospheric chemistry model-the Multi-Scale Infrastructure for Chemistry and Aerosols model (MUSICA). WUI fires have notable impacts on key air pollutants [e.g., carbon monoxide (CO), nitrogen dioxide (NO), fine particulate matter (PM), and ozone (O)]. The health impact of WUI fire emission is disproportionately large compared to wildland fires primarily because WUI fires are closer to human settlement. Globally, the fraction of WUI fire-caused annual premature deaths (APDs) to all fire-caused APDs is about three times of the fraction of WUI fire emissions to all fire emissions. The developed model framework can be applied to address critical needs in understanding and mitigating WUI fires and their impacts.
城市与野地交界处（WUI）的火灾是一个全球问题，且其重要性日益增加。然而，与野地火灾相比，WUI火灾对空气质量和健康的影响鲜为人知。我们使用多尺度大气化学模型——化学与气溶胶多尺度基础设施模型（MUSICA），在全球尺度上分析WUI火灾对空气质量和健康的影响。WUI火灾对关键空气污染物[如一氧化碳（CO）、二氧化氮（NO）、细颗粒物（PM）和臭氧（O）]有显著影响。与野地火灾相比，WUI火灾排放对健康的影响大得多，主要是因为WUI火灾离人类住区更近。在全球范围内，WUI火灾导致的年度过早死亡（APD）占所有火灾导致的APD的比例，约为WUI火灾排放占所有火灾排放比例的三倍。所开发的模型框架可用于满足理解和减轻WUI火灾及其影响方面的关键需求。
