Fig. 4: Vehicle PN emission inventory and driver analysis of emission changes from 2019 to 2023. | npj Climate and Atmospheric Science

Fig. 4: Vehicle PN emission inventory and driver analysis of emission changes from 2019 to 2023.

From: Accelerated reduction of atmospheric ultrafine particles since China VI vehicle emission standards

Fig. 4: Vehicle PN emission inventory and driver analysis of emission changes from 2019 to 2023.

PN emission inventories in Beijing (a) and nationwide (c) were classifed by fuel type (gasoline, diesel and nature gas) and emission standards. Driver analysis in Beijing (b) and nationwide (d) included factors of vehicle activity level, fleet turn-over, introduction of China VI and new energy vehicle (NEV) promotion.

Back to article page