| Acronym | Meaning |
| CEY | Conversion Electron Yield |
| BOREAS | Boreal Ecosystem - Atmosphere Exchange Study |
| CMF | Crossflow Microfiltration |
| GLWQA | Great Lakes Water Quality Agreement |
| MERIS | Medium Resolution Imaging Spectrometer |
| MEP | Molecular Electrostatic Potential |
| RMAPS | Receptor Model Applied To Patterns In Space |
| ECETOC | European Center For Ecotoxicology And Toxicology Of Chemicals |
| RAIN | Reactions And Intermediates Network |
| MS | Multiple Scattering |