| Acronym | Meaning |
| SCAQS | Southern California Air Quality Study |
| BOO | Bond Order Orbital |
| PTNO | Perturbation Theory Natural Orbital |
| RC(XI) | (fully) Correlated Relativistic Local-density |
| ATM | Airborne Thematic Mapper |
| OSTI | Office Of Scientific And Technical Information |
| HAPEM | Hazardous Air Pollutant Exposure Model |
| FOTOS | First-order Theory Of Oscillator Strength |
| BF | Bright Field |
| SAGE II | Stratospheric Aerosol And Gas Expt. II |