| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| epa six criteria air pollutants | 0.83 | 0.2 | 6118 | 63 | 31 |
| epa | 0.23 | 0.2 | 199 | 62 | 3 |
| six | 0.74 | 0.4 | 8541 | 77 | 3 |
| criteria | 0.79 | 0.7 | 8238 | 45 | 8 |
| air | 0.96 | 1 | 6848 | 98 | 3 |
| pollutants | 0.86 | 0.5 | 7977 | 38 | 10 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| epa six criteria air pollutants | 0.3 | 0.1 | 2655 | 24 |
