Fig. 3
From: The trilemma of sustainable industrial growth: evidence from a piloting OECD’s Green city
Illustrations of the relationship between the total area of paved road and air pollutions. 1. The relationship between total area of paved road and the amount of falling dust. 2. The relationship between total area of paved road and the concentration of CO. 3. The relationship between total area of paved road and the concentration of Ox. 4. The relationship between total area of paved road and the concentration of NO2.
