| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| nitric acid human health risk inhalation | 0.34 | 0.2 | 8605 | 58 | 40 |
| nitric | 0.69 | 0.2 | 2554 | 47 | 6 |
| acid | 0.67 | 0.1 | 7833 | 43 | 4 |
| human | 0.73 | 0.8 | 1945 | 54 | 5 |
| health | 1.09 | 0.3 | 9798 | 35 | 6 |
| risk | 0.74 | 1 | 2561 | 59 | 4 |
| inhalation | 1.4 | 0.5 | 8216 | 23 | 10 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| nitric acid human health risk inhalation | 0.02 | 0.9 | 2429 | 2 |
| nitric acid health hazards | 1.4 | 1 | 1384 | 58 |
| risk of nitric acid | 0.26 | 0.1 | 7833 | 45 |
| nitric acid human health effects | 0.65 | 0.3 | 5696 | 19 |
| chemical and health concerns of nitric acid | 0.64 | 0.8 | 7257 | 70 |
| is nitric acid harmful to human | 1.37 | 0.8 | 2980 | 57 |
| dangers of nitric acid | 0.09 | 0.2 | 3099 | 72 |
| hazards of nitric acid | 1.06 | 0.4 | 2153 | 42 |
| nitric acid health effects | 1.8 | 0.2 | 6305 | 27 |
| how dangerous is nitric acid | 0.64 | 0.4 | 4029 | 95 |
| nitric acid hazard information | 1.9 | 0.3 | 4398 | 89 |
| concentrated nitric acid hazards | 0.12 | 0.3 | 2487 | 1 |
| nitric acid safety hazards | 1.83 | 0.3 | 7683 | 48 |
| nitric acid effect on humans | 1.74 | 1 | 6272 | 96 |
| why is nitric acid dangerous | 1.3 | 0.2 | 8813 | 91 |
| nitric acid 90% hazards | 1.85 | 0.2 | 1901 | 54 |
| is nitric acid harmful | 1.02 | 0.6 | 200 | 84 |
| nitric acid and health | 1.11 | 0.5 | 3527 | 51 |
| nitric acid effect on human body | 0.8 | 0.5 | 3685 | 32 |
| is nitric acid harmful to the environment | 0.58 | 0.4 | 1104 | 25 |
| dangers of nitric acid fumes | 1.98 | 1 | 1310 | 64 |
| negative effects of nitric acid | 0.54 | 0.9 | 5045 | 96 |
| nitric acid environmental effects | 1.46 | 0.4 | 4362 | 25 |
