| Acronym | Meaning |
| DLM | Diffuse Layer Model (of Adsorption) |
| TLV | Threshold Limit Value |
| SEPAR | Surfaces Enhanced For Photolabile Attachment And Release |
| ECI | Size-extensive CI |
| SCAB | South Coast Air Basin |
| CAROL | Centralized Air Emissions Repository On-Line |
| EPC | Evaporative Pattern Casting |
| ANITA | Ammonia And Nitrification Analyzer |
| GRIMM | Global/Regional Interhemispheric Mercury Model |
| CBEA | Constrained Binary Encounter Approximation |