| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| is nitric acid harmful to human | 1.04 | 1 | 5168 | 20 |
| is nitric acid harmful to the environment | 0.12 | 0.5 | 7869 | 100 |
| is nitric acid deadly | 0.97 | 0.1 | 9893 | 48 |
| dangers of nitric acid | 1.94 | 0.1 | 9869 | 59 |
| nitric acid human health effects | 1.36 | 0.9 | 1453 | 9 |
| nitric acid health hazards | 1.41 | 0.5 | 1251 | 35 |
| nitric acid effect on humans | 0.3 | 0.3 | 6008 | 38 |
| chemical and health concerns of nitric acid | 1.69 | 0.8 | 1958 | 2 |
| nitric acid effect on human body | 0.07 | 0.7 | 6455 | 34 |
| is nitric acid safe | 1.23 | 0.8 | 3677 | 34 |
| risks of nitric acid | 0.62 | 0.4 | 5163 | 34 |
| nitric acid human health risk inhalation | 1.91 | 0.9 | 2224 | 27 |
| hazards of nitric acid | 1.1 | 0.5 | 2290 | 86 |
| nitric acid hazard information | 1.85 | 0.5 | 6035 | 87 |
| nitric acid safety hazards | 1.66 | 0.9 | 3899 | 21 |
| dangers of nitric acid fumes | 1.83 | 0.3 | 9476 | 34 |
| nitric acid health effects | 0.15 | 0.4 | 8337 | 26 |
| nitric acid and health | 0.34 | 0.3 | 827 | 14 |
| nitric acid 90% hazards | 1.37 | 0.7 | 3473 | 85 |
