Relating Ambient Particulate Matter Concentration Levels to Mortality Using an Exposure Simulator
利用暴露模拟器研究环境颗粒物浓度与死亡率的关系
Since the U.S. Environmental Protection Agency began widespread monitoring of PM2.5 (particulate matter <2.5 μ in diameter) concentration levels in the late 1990s, the epidemiological community has performed several observational studies directly relating PM2.5 concentration to various health endpoints including mortality and morbidity. However, recent research suggests that human exposure to the constituents of PM2.5 may differ significantly from ambient (or outdoor) PM2.5…