Figure 6

The relationships between precipitation and the fugacity fraction (ff) for PCB28 in the latitudinal direction from south to north with around four cities, (a) Guangzhou, (b) Wuhan, (c) Beijing, and (d) Harbin.
The relationships between precipitation and the fugacity fraction (ff) for PCB28 in the latitudinal direction from south to north with around four cities, (a) Guangzhou, (b) Wuhan, (c) Beijing, and (d) Harbin.