气候变化领域集成服务门户(CCPortal): Spatial Heterogeneity of the Respiratory Health Impacts of Wildfire Smoke PM2.5 in California

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DOI	10.1029/2023GH000997
	Spatial Heterogeneity of the Respiratory Health Impacts of Wildfire Smoke PM2.5 in California
	Do, V.; Chen, C.; Benmarhnia, T.; Casey, J. A.
发表日期	2024
ISSN	2471-1403
起始页码	8
结束页码	4
卷号	8 期号:4
英文摘要	Wildfire smoke fine particles (PM2.5) are a growing public health threat as wildfire events become more common and intense under climate change, especially in the Western United States. Studies assessing the association between wildfire PM2.5 exposure and health typically summarize the effects over the study area. However, health responses to wildfire PM2.5 may vary spatially. We evaluated spatially-varying respiratory acute care utilization risks associated with short-term exposure to wildfire PM2.5 and explored community characteristics possibly driving spatial heterogeneity. Using ensemble-modeled daily wildfire PM2.5, we defined a wildfire smoke day to have wildfire-specific PM2.5 concentration >= 15 mu g/m3. We included daily respiratory emergency department visits and unplanned hospitalizations in 1,396 California ZIP Code Tabulation Areas (ZCTAs) and 15 census-derived community characteristics. Employing a case-crossover design and conditional logistic regression, we observed increased odds of respiratory acute care utilization on wildfire smoke days at the state level (odds ratio [OR] = 1.06, 95% confidence interval [CI]: 1.05, 1.07). Across air basins, ORs ranged from 0.88 to 1.57, with the highest effect estimate in San Diego. A within-community matching design and spatial Bayesian hierarchical model also revealed spatial heterogeneity in ZCTA-level rate differences. For example, communities with a higher percentage of Black or Pacific Islander residents had stronger wildfire PM2.5-outcome relationships, while more air conditioning and tree canopy attenuated associations. We found an important heterogeneity in wildfire smoke-related health impacts across air basins, counties, and ZCTAs, and we identified characteristics of vulnerable communities, providing evidence to guide policy development and resource allocation.
英文关键词	wildfire; smoke; acute care utilization; spatial heterogeneity; vulnerability; environmental justice
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Public, Environmental & Occupational Health
WOS类目	Environmental Sciences ; Public, Environmental & Occupational Health
WOS记录号	WOS:001193639400001
来源期刊	GEOHEALTH
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/301493
作者单位	Columbia University; University of California System; University of California San Diego; Scripps Institution of Oceanography; Institut National de la Sante et de la Recherche Medicale (Inserm); Universite de Rennes; Ecole des Hautes Etudes en Sante Publique (EHESP); University of Washington; University of Washington Seattle
推荐引用方式 GB/T 7714	Do, V.,Chen, C.,Benmarhnia, T.,et al. Spatial Heterogeneity of the Respiratory Health Impacts of Wildfire Smoke PM2.5 in California[J],2024,8(4).
APA	Do, V.,Chen, C.,Benmarhnia, T.,&Casey, J. A..(2024).Spatial Heterogeneity of the Respiratory Health Impacts of Wildfire Smoke PM2.5 in California.GEOHEALTH,8(4).
MLA	Do, V.,et al."Spatial Heterogeneity of the Respiratory Health Impacts of Wildfire Smoke PM2.5 in California".GEOHEALTH 8.4(2024).