| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| why does smog occur | 1.46 | 0.5 | 5363 | 59 | 19 |
| why | 1.37 | 0.5 | 9106 | 79 | 3 |
| does | 0.01 | 1 | 9145 | 29 | 4 |
| smog | 0.01 | 0.6 | 4981 | 16 | 4 |
| occur | 0.05 | 0.4 | 7973 | 23 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| why does smog occur | 0.8 | 0.1 | 203 | 88 |
| why smog occurs in winter | 1.89 | 0.7 | 7147 | 4 |
| how does smog form | 0.19 | 0.3 | 7780 | 80 |
| why is smog a problem | 1.42 | 0.8 | 1512 | 11 |
| what does smog come from | 1.15 | 0.6 | 7453 | 96 |
| how is smog created | 0.48 | 0.8 | 7626 | 93 |
| how is smog formed | 1.01 | 1 | 4254 | 28 |
| cause and effect of smog | 1.37 | 1 | 3837 | 38 |
| smog causes and effects | 1.11 | 1 | 2827 | 68 |
| how is smog produced | 1.24 | 1 | 607 | 87 |
| what causes industrial smog | 1.93 | 1 | 8495 | 52 |
| smog in the air | 1.56 | 0.3 | 3846 | 18 |
| what causes smog pollution | 0.62 | 0.7 | 1821 | 84 |
| what caused the great smog | 1.79 | 0.9 | 9408 | 65 |
