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期刊来源：Nat Med

原文链接：https://doi.org/10.1038/s41591-024-02976-x

摘要内容如下：

地面臭氧（O3）是一种有害的空气污染物，由阳光和前体气体相互作用在大气中形成。在欧洲，暴露于目前的臭氧水平是空气污染导致过早死亡的主要原因。然而，缓解行动主要是在国家和区域范围内设计和实施的，缺乏对臭氧污染的地理来源及其相关健康影响的全面评估。在这里，我们量化了35个欧洲国家的813个相邻地区（约5.3亿人）的国家和进口对O3的贡献及其相关的死亡负担。输入性臭氧占所有可归因于臭氧的死亡的88.3%（国家间范围83-100%）。最大比例的输入性臭氧来自研究领域之外（即半球来源），占总臭氧归因死亡率的56.7%（范围42.5-87.2%）。得出的结论是，实现世界卫生组织制定的空气质量准则和避免臭氧对健康的影响，不仅需要实施国家或协调的泛欧行动，还需要全球战略。

英文原文如下：

Abstracts

Ground-level ozone (O3) is a harmful air pollutant formed in the atmosphere by the interaction between sunlight and precursor gases. Exposure to current O3 levels in Europe is a major source of premature mortality from air pollution. However, mitigation actions have been mainly designed and implemented at the national and regional scales, lacking a comprehensive assessment of the geographic sources of O3 pollution and its associated health impacts. Here we quantify both national and imported contributions to O3 and their related mortality burden across 813 contiguous regions in 35 European countries, representing about 530 million people. Imported O3 contributed to 88.3% of all O3-attributable deaths (intercountry range 83-100%). The greatest share of imported O3 had its origins outside the study domain (that is, hemispheric sources), which was responsible for 56.7% of total O3-attributable mortality (range 42.5-87.2%). It was concluded that achieving the air-quality guidelines set out by the World Health Organization and avoiding the health impacts of O3 require not only the implementation of national or coordinated pan-European actions but also global strategies.

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