| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| criteria air pollutants 中文 | 0.87 | 0.2 | 7419 | 25 | 30 |
| criteria | 0.5 | 0.7 | 7501 | 59 | 8 |
| air | 0.45 | 0.8 | 2631 | 24 | 3 |
| pollutants | 1.77 | 0.1 | 5647 | 67 | 10 |
| 中文 | 0.86 | 0.8 | 4498 | 80 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| criteria air pollutants 中文 | 1.07 | 0.9 | 4922 | 73 |
| criteria air pollutants definition | 0.12 | 0.7 | 1301 | 92 |
| what is criteria air pollutants | 0.12 | 0.8 | 6838 | 88 |
| list of criteria air pollutants | 1.12 | 0.4 | 6604 | 13 |
| what is criteria pollutants | 1.01 | 0.7 | 358 | 24 |
| air quality criteria pollutants | 0.43 | 0.9 | 2478 | 22 |
| what are the 6 criteria air pollutants | 0.51 | 0.5 | 5197 | 32 |
| define criteria pollutants with example | 1.84 | 0.2 | 826 | 40 |
| list of criteria pollutants | 0.51 | 0.9 | 1410 | 86 |
| water air soil pollut 全称 | 1.98 | 0.1 | 2923 | 61 |
| which pollutant is not a criteria pollutant | 0.03 | 0.2 | 6046 | 52 |
