| PAHs Ratio | Value | Origin (source) | Source (Study Area) |
| LMW/HMW | >1.0 | Petrogenic | Petrogenic |
| Phen/anthracene | >15 | Petrogenic | Pyrolytic |
| Anth/178 | <0.1 | Petrogenic | Petrogenic |
| BaA/228 | <0.2 | Petrogenic | Petrogenic |
| Chry/BaA | <0.4 | Petrogenic | NA |
| Anth/Anth + Phen | <0.1 | Petrogenic | Pyrolytic |
| Flt/Flt + Pyr | <0.4 | Petrogenic | Pyrolytic |
| Pyr/Flt | >1 | Petrogenic | Pyrolytic |
| BaA/BaA + Chry | <0.2 | Petrogenic | NA |
| Inp/Inp + BP | <0.2 | Petrogenic | NA |