Fig. 2: Effect estimates of air pollutants on COVID-19 mortality at different lag days.

Effect estimates and confidence intervals of four air pollutants on COVID-19 mortality at lags of 1, 7, and 14 days in 45 cities and Wuhan, China.

Effect estimates and confidence intervals of four air pollutants on COVID-19 mortality at lags of 1, 7, and 14 days in 45 cities and Wuhan, China.