Fig. 1
From: Assessment of health economic losses caused by PM2.5 and ozone pollution in Beijing and Tianjin

Annual average PM2.5 concentration and the 90 th percentile of the daily maximum 8-h average ozone concentration in Beijing and Tianjin.
From: Assessment of health economic losses caused by PM2.5 and ozone pollution in Beijing and Tianjin
Annual average PM2.5 concentration and the 90 th percentile of the daily maximum 8-h average ozone concentration in Beijing and Tianjin.