Emission trends of air pollutants and CO2 in China from 2005 to 2021

We have compiled a coupled emission dataset of air pollutants and CO2 in mainland China from 2005 to 2021, that is, ABaCAS-EI v2.0 (Air Benefit and Cost and Attainment Assessment System-Emission Inventory version 2.0), which is an updated version of ABaCAS-EI. The dataset covers CO2 and 9 types of air pollutants and includes 11 major source categories and more than 280 subsectors. This dataset introduces emissions by species, sector, year, and province. 1) The species include CO2, SO2, NOx, PM10, PM2.5, BC, OC, VOCs, NH3, and CO. 2) Fifteen emission sectors are reported: agricultural nitrogen fertilizer application, agricultural livestock, residential biofuel combustion, residential fossil fuel combustion, residential solvent usage, other residential sources, industrial boiler, biomass open burning, power plant, cement industry, iron and steel industry, other industrial processes, industrial solvent usage, off-road machine, and on-road vehicle. 3) 2005 to 2021 4) All of the 31 provinces in mainland China.