| Acronym | Meaning |
| EID | Environmental Improvement Division |
| CCI | Chronic Constriction Injury |
| EMTIC | Emission Measurement Technical Information Center |
| ALI | Annual Limit On Intake |
| DWBA3(3DWBA) | Three-body Distorted-wave Born Approximation |
| KKR-GF | Korringa-Kohn-Rostoker-Green Function |
| PHEMT | Pseudomorphic High Electron Mobility Transistor |
| MCT | MOS Controlled Thyristor |
| APTI | Air Pollution Training Institute |
| DO | Dissolved Oxygen |