| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| air pollutants from coal combustion | 0.14 | 0.5 | 5061 | 36 | 35 |
| air | 0.47 | 0.9 | 8902 | 49 | 3 |
| pollutants | 1.99 | 0.3 | 1218 | 52 | 10 |
| from | 0.17 | 0.9 | 1184 | 60 | 4 |
| coal | 0.85 | 1 | 5141 | 50 | 4 |
| combustion | 0.98 | 0.8 | 4376 | 52 | 10 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| air pollutants from coal combustion | 1.3 | 0.3 | 756 | 50 |
