| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| what are criteria pollutants | 0.3 | 0.9 | 1931 | 5 | 28 |
| what | 1.4 | 0.8 | 705 | 13 | 4 |
| are | 0.91 | 0.7 | 1910 | 68 | 3 |
| criteria | 0.64 | 0.7 | 6257 | 49 | 8 |
| pollutants | 0.46 | 0.3 | 4017 | 98 | 10 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what are criteria pollutants | 1.82 | 0.4 | 9938 | 89 |
