| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| pollutants released by coal | 1.59 | 0.2 | 2737 | 77 | 27 |
| pollutants | 1.43 | 0.7 | 5910 | 82 | 10 |
| released | 0.86 | 0.4 | 7205 | 86 | 8 |
| by | 1.51 | 0.2 | 1606 | 49 | 2 |
| coal | 1.37 | 0.4 | 2096 | 84 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| pollutants released by coal | 1.68 | 1 | 5488 | 40 |
