| Acronym | Meaning |
| ACP | Approximate Coupled-pair (method For Correlation-energy Calcn.) |
| NCASI | National Council For Air And Stream Improvement |
| SUSYQM | Supersymmetric Quantum Mechanics |
| IHO | International Hydrographic Association |
| DU | Dobson Units |
| BK-DOK | Berufkrankeit Dokumentation (German Occupational Disease Documentation) |
| BLC | Borderless Contact |
| LRAT | Long-range Atmospheric Transport |
| NAMA | National Air Monitoring Audits |
| EPA | Environmental Protection Authority (Australia) |