| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| clean air act memorandum | 1.14 | 0.3 | 6296 | 80 | 24 |
| clean | 1.35 | 0.8 | 2493 | 36 | 5 |
| air | 1.48 | 0.2 | 9320 | 24 | 3 |
| act | 1.76 | 0.2 | 2828 | 72 | 3 |
| memorandum | 0.62 | 1 | 215 | 72 | 10 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| clean air act memorandum | 0.77 | 0.1 | 9939 | 19 |
| clean air act memorandum uk | 0.98 | 0.6 | 4650 | 13 |
| clean air act memorandum on chimney heights | 1.58 | 0.7 | 3155 | 30 |
| the clean air act amendments | 1.46 | 0.9 | 5237 | 10 |
| clean air act recent amendments | 1.96 | 0.3 | 9074 | 49 |
| clean air act document | 1.12 | 0.5 | 8147 | 42 |
| clean air act overview | 1.99 | 0.2 | 6606 | 42 |
| clean air act information | 1.55 | 0.7 | 5215 | 55 |
| most recent clean air act amendment | 1.5 | 0.9 | 3092 | 7 |
| clean air act pdf | 0.29 | 0.2 | 8280 | 49 |
| clean air act 2015 | 0.09 | 0.5 | 7306 | 77 |
| clean air act amendment 1990 | 1.55 | 0.6 | 1650 | 37 |
| clean air act amendments of 1990 pdf | 1.99 | 0.9 | 5854 | 35 |
| clean air act summary | 0.3 | 0.7 | 9014 | 73 |
| clean air act signed | 0.04 | 0.4 | 1812 | 98 |
| clean air act amendment 1965 | 0.02 | 0.2 | 329 | 92 |
| clean air act 1990 amendments | 1.45 | 0.7 | 854 | 19 |
| text of the clean air act | 0.96 | 0.4 | 8432 | 2 |
| the clean air act | 0.89 | 0.8 | 2888 | 2 |
| clean air act application | 1.19 | 0.3 | 2402 | 95 |
| has the clean air act been amended | 1.25 | 0.5 | 7714 | 77 |
| clean air act monitoring | 1.67 | 0.8 | 1815 | 53 |
