Extended Data Fig. 4: The growth of MDA8 ozone-PM2.5 partial correlation coefficients (PCORs) and the decline in PM2.5 concentrations for the five key regions during 2013–2021.
From: Sustained emission reductions have restrained the ozone pollution over China
The solid blue lines and solid green lines indicate the time series of MDA8 ozone-PM2.5 PCORs and PM2.5 concentrations, respectively. The dashed blue lines indicate the linear trends of MDA8 ozone-PM2.5 PCORs. The annual growth rates of PCORs with significance levels (*p < 0.05) are presented.
