| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| esophageal cancer and railroad pollution | 1.26 | 0.2 | 3308 | 100 | 40 |
| esophageal | 0.98 | 0.5 | 7319 | 43 | 10 |
| cancer | 0.26 | 0.6 | 7386 | 19 | 6 |
| and | 0.05 | 0.6 | 8298 | 99 | 3 |
| railroad | 1.16 | 0.2 | 4785 | 39 | 8 |
| pollution | 0.25 | 0.2 | 3452 | 78 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| esophageal cancer and railroad pollution | 0.03 | 0.7 | 4325 | 72 |
