| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| chicago worst air disaster | 1.63 | 0.5 | 4852 | 1 | 26 |
| chicago | 0.79 | 1 | 81 | 95 | 7 |
| worst | 0.22 | 0.7 | 9610 | 42 | 5 |
| air | 1.54 | 0.8 | 7460 | 49 | 3 |
| disaster | 0.3 | 0.1 | 3613 | 82 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| chicago worst air disaster | 0.52 | 0.7 | 1913 | 63 |
| worst us air disaster | 1.83 | 0.4 | 4949 | 31 |
| chicago worst air quality | 1.56 | 0.5 | 2794 | 81 |
| chicago air quality worst in the world | 0.82 | 0.1 | 8670 | 84 |
| worst air disaster of all time | 0.35 | 0.6 | 6810 | 87 |
| worst air disaster in us history | 0.3 | 0.5 | 9707 | 11 |
| chicago worst air pollution | 0.31 | 0.9 | 8108 | 24 |
| chicago air disaster 1979 | 0.03 | 0.8 | 4894 | 73 |
| chicago worst air quality history | 1.01 | 0.2 | 6208 | 59 |
| chicago worst air index | 0.92 | 0.7 | 4510 | 62 |
| chicago worst air days | 0.31 | 0.7 | 6191 | 47 |
| chicago worst air quality effects | 0.45 | 0.8 | 1023 | 24 |
| worst air show disaster | 0.08 | 0.9 | 4054 | 4 |
| world's worst air disaster | 0.84 | 0.4 | 2951 | 63 |
| top 10 worst air disasters | 1.52 | 1 | 1592 | 11 |
| worst airline disaster in us history | 1.22 | 0.1 | 2469 | 23 |
| worst airline disaster of all time | 1.49 | 1 | 2734 | 41 |
| worst airline disasters in us | 1.26 | 0.7 | 4873 | 86 |
