Fig. 2

Comparison of estimated power emissions in China from 2014 to 2017. (a–c), The estimated Chinese power emissions (Tg) for PM (a) SO2 (b) and NOX (c) in our database (purple bars) and in existing databases (Refs.5,10,11,20,53,54,55; the Greenhouse Gas and Air Pollution Interactions and Synergies database (GAINS) (https://gains.iiasa.ac.at/models/gains_models3.html); the Multi-resolution Emission Inventory for China (MEIC) (http://meicmodel.org/); non-purple bars). The error bars indicate the associated uncertainty ranges.