Gridded mobile source emissions with multiple processes and pollutants from 2011 to 2020

The gridded mobile source emission dataset provides emissions of CO2 and nine key atmospheric pollutants, including NOx, VOCs, IVOCs, SVOCs, xLVOCs, CO, NH3, PM2.5, and PM10, covering the period from 2011 to 2020. Emissions are spatially allocated to a uniform grid with a resolution of 36 km × 36 km across mainland China. VOCs, IVOCs, SVOCs, and xLVOCs are speciated into chemical mechanism species to facilitate direct application in chemical transport models. Updates: This table (Vehicle_type_relative_contributions_2011_2020.csv) recompiles the relative emission contributions of seven on-road vehicle categories (HPV, MPV, LSPV, HDT, MDT and LSDT) for 31 Chinese provinces over 2011–2020, covering CO, CO₂, NOx, ELVOC, SVOC, VOCs, IVOCs, PM₁₀ and PM₂.₅. For each province–year–pollutant combination, emissions were harmonized across processes, with brake, tyre and road-surface wear merged into PM₁₀ and PM₂.₅ and evaporation merged into VOCs, so that the seven category shares sum to unity. These shares provide vehicle-type-specific weights that can be applied to province-level gridded total on-road emissions, allowing the contribution of each vehicle category to be resolved spatially within each province.