Figure 6
Contributions of the five sources to the BaPeq concentrations of the total PAHs in PM2.5 at 9 urban cities over four seasons. (the background map was made using surfer 8.0 by one co-author).
Figure 6 | Scientific Reports
Contributions of the five sources to the BaPeq concentrations of the total PAHs in PM2.5 at 9 urban cities over four seasons. (the background map was made using surfer 8.0 by one co-author).
