 |
| emission source: 32 phrases in 12 subjects |
| Analytical chemistry | 2 |
| Astronomy | 1 |
| Construction | 1 |
| Ecology | 12 |
| Energy industry | 2 |
| Firefighting and fire-control systems | 1 |
| Metrology | 1 |
| Natural resourses and wildlife conservation | 3 |
| Oil and gas | 4 |
| Technology | 1 |
| Telecommunications | 3 |
| United Nations | 1 |