| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| bad ozone is formed in | 0.52 | 0.4 | 244 | 58 |
| bad ozone is formed in the troposphere | 1.68 | 0.7 | 1372 | 3 |
| what causes bad ozone to form | 0.66 | 0.6 | 313 | 61 |
| what is bad ozone | 1.39 | 0.2 | 1467 | 1 |
| why is ozone bad | 0.46 | 1 | 8119 | 32 |
| where is bad ozone found | 0.58 | 0.1 | 4870 | 61 |
| where is the bad ozone located | 1.43 | 0.2 | 5583 | 57 |
| why is ozone hazardous | 0.43 | 0.6 | 611 | 31 |
| how is ozone pollution formed | 0.92 | 0.3 | 10 | 33 |
| how do good and bad ozone form | 0.46 | 0.5 | 2144 | 52 |
| ozone is formed when | 1.27 | 0.1 | 2238 | 99 |
| why is ozone harmful | 0.37 | 0.6 | 5827 | 97 |
| what causes ozone in the air | 0.52 | 0.5 | 5280 | 98 |
| what causes ozone to be produced | 0.1 | 0.9 | 7237 | 16 |
| what is ozone pollution caused by | 1.37 | 0.4 | 6630 | 68 |
| why is ozone dangerous | 1.18 | 0.2 | 6983 | 44 |
| causes damage to the ozone | 1.77 | 0.2 | 8393 | 36 |
| how does ozone pollution form | 1.23 | 0.1 | 188 | 21 |
| what cause ozone pollution | 0.83 | 0.4 | 3010 | 46 |
