当发生野火事件时，颗粒物对死亡率的长期影响会加剧。
Long-term impact of PM on mortality is exacerbated when wildfire events occur.
作者信息
Spoto Federica, Dominici Francesca, Braun Danielle, Casey Joan A
机构信息
Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
出版信息
ArXiv. 2025 May 22:arXiv:2505.16613v1.
There is extensive evidence that long-term exposure to all-source PM increases mortality. However, to date, no study has evaluated whether this effect is exacerbated in the presence of wildfire events. Here, we study 60+ million older US adults and find that wildfire events increase the harmful effects of long-term all-source PM exposure on mortality, providing a new and realistic conceptualization of wildfire health risks.
有大量证据表明，长期接触各种来源的细颗粒物（PM）会增加死亡率。然而，迄今为止，尚无研究评估在发生野火事件的情况下这种影响是否会加剧。在此，我们对6000多万美国老年人进行了研究，发现野火事件会增加长期接触各种来源的PM对死亡率的有害影响，从而为野火健康风险提供了一种新的、现实的概念。
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