Extended Data Fig. 9: Correlation between detected OOMs from different precursor classes and PM2.5 in Beijing, Nanjing, Shanghai and Hong Kong.
From: Secondary organic aerosol formed by condensing anthropogenic vapours over China’s megacities
Aliphatic-OOMs in red, aromatic-OOMs in blue, isoprene-OOMs in bright yellow, monoterpene-OOMs in dark yellow and undistinguished OOMs in grey.
