| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| nox from hydrogen combustion | 1.48 | 0.7 | 2491 | 75 | 28 |
| nox | 1.04 | 0.8 | 7447 | 7 | 3 |
| from | 1.1 | 0.8 | 7842 | 41 | 4 |
| hydrogen | 1.52 | 0.9 | 1798 | 87 | 8 |
| combustion | 1 | 0.4 | 2085 | 5 | 10 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| nox from hydrogen combustion | 0.81 | 0.3 | 8761 | 24 |
