| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| criteria air pollutants definition | 0.8 | 0.1 | 9175 | 88 | 34 |
| criteria | 0.94 | 0.3 | 2016 | 70 | 8 |
| air | 1.02 | 0.1 | 8090 | 98 | 3 |
| pollutants | 0.19 | 0.7 | 2824 | 60 | 10 |
| definition | 0.74 | 0.5 | 3088 | 23 | 10 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| criteria air pollutants definition | 0.16 | 0.1 | 6991 | 43 |
