| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Oxygen | 100 | + | |
| 2 | Carbon Dioxide | 56 | + | |
| 3 | Nitrogen Oxides | 37 | + | |
| 4 | Noble Gases | 34 | + | |
| 5 | Hydrogen Sulfide | 22 | + | |
| 6 | Carbon Monoxide | 18 | + | |
| 7 | Sulfur Dioxide | 7 | + | |
| 8 | Hydrogen | 7 | + | |
| 9 | Nitrogen | 4 | + | |
| 10 | Ammonia | 3 | + | |
| 11 | Chlorine | 3 | + | |
| 12 | Sulfur Hexafluoride | 1 | + |