Fig. 4
From: China economy-wide material flow account database from 1990 to 2020

Output of domestic processed material by sources and destinations during 1990–2020. Values are measured in a million tonnes. (a) is the total amount; (b) is the percentage that output of CO2 accounts for the total DPO; the number of each material to air (c), to water (d) and by dissipative use (e).