| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| ballast water treatment system ppt | 0.04 | 0.1 | 3924 | 27 |
| ballast water treatment system pdf | 0.25 | 0.1 | 8115 | 42 |
| ballast water treatment system | 1.86 | 0.1 | 3936 | 72 |
| ballast water treatment system methods | 1.58 | 0.1 | 1578 | 15 |
| guide for ballast water treatment | 0.36 | 0.1 | 1985 | 5 |
| ballast water treatment technology | 1.78 | 0.6 | 1380 | 97 |
| ballast water treatment system regulations | 1.74 | 0.6 | 4437 | 1 |
| ballast water treatment system types | 1.47 | 0.5 | 8096 | 18 |
| ballast water treatment methods | 1.95 | 0.5 | 6188 | 76 |
| ballast water treatment system in ship | 1.94 | 0.3 | 9017 | 57 |
| water ballast management system | 1.71 | 0.8 | 7721 | 27 |
| ballast water treatment plant | 0.23 | 0.5 | 7614 | 100 |
| ballast water treatment regulations | 1.86 | 0.9 | 4130 | 72 |
| ballast tank water treatment | 1.89 | 0.6 | 7324 | 40 |
| water ballast management plan | 0.29 | 0.8 | 7933 | 6 |
