| Acronym | Meaning |
| ORV | Optical Retardation Velocity |
| PGAA | Prompt Gamma-ray Activation Analysis |
| CLRTAP | Convention On Long-Range Transboundary Air Pollution |
| OPA | Optical Parametric Amplifier |
| ABSA | American Biological Safety Association |
| PBC | Periodic Bond Chain |
| PWHF | Plane-wave Hartree-Fock |
| MBMS | Molecular Beam Mass Spectrometry |
| AQRV | Air Quality Related Values |
| SWORD | Surveillance Of Work Related And Occupational Respiratory Disease |