Figure 3
The number fractions of predominant pollution in the 14 cities (a for P-I; b for P-II) (R version 4.0.1 https://www.r-project.org/).
Figure 3 | Scientific Reports
The number fractions of predominant pollution in the 14 cities (a for P-I; b for P-II) (R version 4.0.1 https://www.r-project.org/).
