Air Pollution and Infant Health: What Can We Learn from California's Recent Experience?
利用1990年代加州个体层面数据和周度污染数据，研究空气污染对婴儿死亡率的影响，发现一氧化碳减少挽救了约1000名婴儿生命。
We examine the impact of air pollution on infant death in California over the 1990s. Our work offers several innovations: first, most previous studies examine populations subject to far greater levels of pollution. Second, many studies examine a single pollutant in isolation. We examine three "criteria" pollutants in a common framework. Third, we use rich individual-level data and pollution measured at the weekly level. Our most novel finding is a significant effect of CO on infant mortality: we find that reductions in carbon monoxide over the 1990s saved approximately 1000 infant lives in California.