| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| explain the effect of nox on environment | 0.24 | 0.8 | 4570 | 55 | 40 |
| explain | 1.41 | 0.8 | 728 | 58 | 7 |
| the | 1.24 | 0.8 | 5632 | 50 | 3 |
| effect | 0.59 | 1 | 8956 | 71 | 6 |
| of | 1.69 | 0.8 | 1005 | 4 | 2 |
| nox | 0.09 | 0.9 | 5642 | 59 | 3 |
| on | 0.84 | 0.4 | 7123 | 94 | 2 |
| environment | 2 | 0.7 | 242 | 76 | 11 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| explain the effect of nox on environment | 0.31 | 0.5 | 9346 | 86 |
| why is nox bad for the environment | 0.46 | 1 | 8008 | 79 |
| effect of nox on human health | 0.45 | 0.8 | 4242 | 21 |
| nox influence on greenhouse effect | 0.07 | 0.1 | 8910 | 55 |
| nox influence on plants | 0.54 | 0.8 | 7180 | 84 |
| greenhouse effect of nox | 0.91 | 0.5 | 7790 | 71 |
| nox influence on climate change | 1.99 | 0.2 | 945 | 5 |
| nox influence on health | 1.82 | 0.5 | 2467 | 4 |
| nox influence on air quality | 0.76 | 0.8 | 2473 | 70 |
| nox effects on human health | 1.56 | 0.8 | 2448 | 93 |
| nox influence on human health | 0.17 | 0.2 | 6348 | 56 |
| nox influence on plant growth | 0.08 | 0.4 | 5327 | 22 |
| why are nox emissions harmful | 1.61 | 0.1 | 9659 | 79 |
| does nox contribute to global warming | 1.79 | 0.3 | 3041 | 40 |
| health effects of nox | 1.71 | 0.8 | 2737 | 86 |
| global warming potential of nox | 0.37 | 0.1 | 1322 | 57 |
| nox influence on combustion | 1.44 | 0.5 | 7195 | 38 |
| why is nox so bad | 0.99 | 0.5 | 8488 | 3 |
