| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| osha's pel for hydrogen fluoride | 0.68 | 0.9 | 5063 | 34 |
| pel for hydrogen fluoride | 1.77 | 0.9 | 1652 | 100 |
| osha pel for hydrofluoric acid | 1.78 | 0.7 | 3735 | 93 |
| osha pel for hydrogen sulfide | 1.92 | 0.1 | 9852 | 71 |
| osha pel for hf | 0.91 | 0.6 | 2735 | 55 |
| pel for hydrogen sulfide | 1.16 | 0.2 | 5698 | 58 |
| osha pel for lead in air | 0.11 | 0.6 | 2475 | 40 |
| osha pel for lead | 0.73 | 0.5 | 1332 | 13 |
| osha pel for chemicals | 0.12 | 1 | 3272 | 88 |
| osha pel for chlorine | 1.77 | 0.3 | 1469 | 68 |
| osha pel for formaldehyde | 1.2 | 1 | 3254 | 26 |
| osha hazardous chemicals pel | 1.24 | 0.1 | 7397 | 94 |
| osha pel chlorine gas | 0.59 | 0.9 | 5644 | 54 |
| osha pel for airborne lead | 0.44 | 1 | 4548 | 100 |
| osha pel for welding fumes | 1.48 | 0.8 | 9731 | 12 |
| ppe for hydrofluoric acid | 0.75 | 0.6 | 7527 | 10 |
| ppe for handling hydrofluoric acid | 0.91 | 0.2 | 8165 | 36 |
| formaldehyde cal osha pel | 1.49 | 0.6 | 2915 | 1 |
| nitrogen dioxide osha pel | 1.24 | 0.7 | 807 | 98 |
