野火加剧了室内污染暴露的不平等

Benjamin Krebs, Matthew Neidell
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引用次数: 0

摘要

野火导致细颗粒物污染浓度急剧上升。高收入家庭会购买更多防御性投资,以降低室外污染渗入室内的程度,基于这一前提,我们在本研究中调查了在野火事件中收入如何影响室外-室内污染渗入率。通过使用 PurpleAir 实时空气质量监测网络的众包数据,以及探索监测器读数随时间变化的计量经济学模型,我们发现室外污染的增加会导致室内污染的显著增加,但在低收入地区,这种情况尤为严重。结果凸显了污染暴露中新的不平等现象:不仅低收入人群的室外污染水平更高,而且即使室外污染水平相似,室内污染水平也更高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Wildfires exacerbate inequalities in indoor pollution exposure
Wildfires lead to dramatic increases in fine particulate matter pollution concentrations. Based on the premise that higher-income households purchase more defensive investments to reduce the degree to which outdoor pollution infiltrates indoors, in this study, we investigate how income contributes to outdoor-indoor pollution infiltration rates during wildfire events. Using crowd-sourced data from the PurpleAir Real-Time Air Quality Monitoring Network and econometric models that explore variations in monitor readings over time, we find increases in outdoor pollution lead to significant increases in indoor pollution, but disproportionately so in lower-income areas. The results highlight a new inequality in pollution exposure: not only are outdoor pollution levels higher for lower-income individuals, but indoor pollution levels are higher even for similar outdoor pollution levels.
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