Figure 2
From: The burden of COPD mortality due to ambient air pollution in Guangzhou, China

The percentage change in COPD mortality associated with 10 μg/m3 increases in ambient air pollutant concentrations along lag 0–15 days.
From: The burden of COPD mortality due to ambient air pollution in Guangzhou, China
The percentage change in COPD mortality associated with 10 μg/m3 increases in ambient air pollutant concentrations along lag 0–15 days.