| Acronym | Meaning |
| COG | Coke-oven Gas |
| OTC | Ozone Transport Commission |
| EERU | Environmental Emergency Response Unit |
| IESS | Inelastic Electron Scattering Spectroscopy |
| LAWS | Laser Atmospheric Wind Sounder (NASA) |
| GAO | General Accounting Office |
| BIOMOVS | Biosphere Model Validation Study |
| TSETG | Two-step Excitation Transient Grating |
| AM | Arithmetic Mean |
| OTS | Office Of Toxic Substances (USEPA) |