| Acronym | Meaning |
| EEA | European Environment Agency |
| URT | Upper Respiratory Tract |
| DDSC | Dynamic Differential Scanning Calorimetry |
| PREVENT | Pacific Northwest Regional Visibility Expt. Using Natural Tracers |
| CMS | Carbogenic Molecular Sieves |
| EPFM | Elasto-plastic Fracture Mechanics |
| LSD-SCF | Local Superdirect-self-consistent Field |
| CGA | Chromogranin A |
| LPAS | Long Pathlength Absorbance Spectroscopy |
| BADT | Best Available Demonstrated Technology |