| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| six criteria air pollutants | 1.05 | 0.2 | 9043 | 48 | 27 |
| six | 1.71 | 0.4 | 8789 | 23 | 3 |
| criteria | 0.94 | 0.1 | 5447 | 84 | 8 |
| air | 0.17 | 0.8 | 5458 | 16 | 3 |
| pollutants | 0.21 | 0.9 | 7813 | 82 | 10 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| six criteria air pollutants | 1.87 | 0.1 | 6605 | 33 |
