| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| ddt harmful effects in the 1900s | 0.63 | 0.5 | 7885 | 19 |
| ddt effects on history | 1.02 | 0.2 | 7743 | 78 |
| why was ddt harmful | 1.64 | 0.8 | 7230 | 53 |
| what was the problem with ddt | 0.18 | 0.1 | 2674 | 44 |
| harmful effects of ddt | 1.92 | 0.8 | 806 | 66 |
| why was ddt bad | 0.07 | 0.6 | 5668 | 11 |
| why was ddt so hazardous | 0.01 | 0.1 | 1396 | 98 |
| how many people were affected by ddt | 0.45 | 0.6 | 7070 | 74 |
| how did ddt affect humans | 0.02 | 0.8 | 6469 | 11 |
| how did ddt affect the environment | 1.39 | 0.9 | 1610 | 34 |
| led to the banning of ddt | 0.18 | 0.8 | 1173 | 38 |
| how many people died from ddt | 1.78 | 0.7 | 2374 | 100 |
| long term effects of ddt on humans | 0.86 | 0.2 | 5325 | 12 |
| long term medical effects of ddt | 0.24 | 1 | 1294 | 10 |
| impacts of ddt on humans | 1.88 | 0.5 | 4318 | 43 |
| why is ddt still a controversial issue | 0.7 | 1 | 6106 | 46 |
| environmental impacts of ddt | 1.14 | 0.3 | 1531 | 89 |
| health impacts of ddt | 0.06 | 0.9 | 2512 | 17 |
| how dangerous is ddt | 1.99 | 0.4 | 9094 | 91 |
| why is ddt still controversial | 1 | 0.1 | 5667 | 3 |
| why is ddt dangerous | 1.99 | 0.7 | 6393 | 84 |
