| Component | % vol. | Component | % vol. |
| CO2 | 10.1 | F2 | 3.3 |
| CO | 2.0 | Cl2 | 0.4 |
| H2 | 0.2 | HCl | 0.0 |
| S2 | 0.5 | N + rare gases | 0.9 |
| SO3 | - | H2O | 82.5 |