季节和温度在颗粒物暴露对死亡率影响中的修饰效应

Effect modification of season and temperature on the relationship between ambient particulate matter and mortality

大气颗粒物污染对人群健康的影响一直备受关注。大量流行病学研究表明，颗粒物浓度升高会引起人群死亡率的增加。另外，不少研究也发现，季节和温度在颗粒物暴露与死亡率的关系中可能存在一定的修饰作用。本文主要通过对季节和温度的修饰效应及其可能的作用机制作综述，以期为今后开展相关研究提供一定的参考依据。

The effect of ambient particulate matters on human health is of great concern. Numerous epidemiological studies have revealed that particulate matters were associated with increased population mortality. Moreover, many studies found that season and temperature might modify the effect of particles on mortality. This paper summarized the potential effect modification of season and temperature and the possible mechanism, so as to orovide certain evidence and reference for the future relevant studies.