| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| air quality index scale | 1.39 | 0.2 | 7703 | 40 | 23 |
| air | 1.81 | 0.3 | 5886 | 87 | 3 |
| quality | 0.6 | 0.7 | 2639 | 17 | 7 |
| index | 0.45 | 0.6 | 5841 | 82 | 5 |
| scale | 0.91 | 0.3 | 5458 | 5 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| air quality index scale | 1.75 | 0.2 | 2395 | 26 |
