| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| worst air quality in us | 0.72 | 0.9 | 6247 | 44 |
| worst air quality in us map | 0.66 | 0.7 | 2893 | 65 |
| worst air quality in usa map | 0.5 | 0.6 | 3176 | 39 |
| worst air quality in us 2020 | 1.1 | 0.6 | 7375 | 17 |
| worst air quality in us states | 0.11 | 1 | 5980 | 67 |
| worst air quality in us history | 1.74 | 0.9 | 2882 | 40 |
| worst air quality in us ranking | 0.26 | 0.7 | 5694 | 87 |
| worst air quality in usa by city | 1.34 | 1 | 4038 | 48 |
| worst air quality in usa by state | 1.98 | 0.1 | 6590 | 63 |
| worst air quality in usa vs world | 0.11 | 0.4 | 2303 | 60 |
| worst air quality in us by county | 0.98 | 0.7 | 5664 | 16 |
| worst air quality in usa 2020 | 0.76 | 0.4 | 9813 | 2 |
| worst air quality in usa history | 1.77 | 0.9 | 2203 | 29 |
| worst air quality in usa ranking | 0.48 | 0.6 | 6716 | 49 |
| worst air quality in the us today | 0.76 | 0.1 | 5889 | 21 |
| worst air quality in the usa | 0.42 | 0.1 | 6326 | 83 |
| what was the worst air quality in the us | 1.98 | 0.9 | 8401 | 50 |
| worst air quality in the us today 2021 | 1.99 | 0.5 | 5924 | 19 |
| worst air quality in the us today effects | 1.87 | 0.4 | 5700 | 48 |
| worst air quality in the us today index | 1.53 | 0.1 | 5039 | 18 |
| worst air quality in the us today live | 1.43 | 0.4 | 468 | 50 |
