| Acronym | Meaning |
| AGA | American Gas Association |
| BSAF | Biota-to-sediment Accumulation Factor |
| COLIWASA | Composite Liquid Waste Sampler |
| VLP | Virus-like Particle |
| BEKP | Backscattered Electron Kikuchi Pattern |
| YSAG | Yttrium Scandium Aluminum Garnet |
| PES | Photoelectron Spectroscopy |
| GCTM | Global Chemical Transport Model |
| SCSAG | Small-curvature Semiclassical Adiabatic Ground-state (tunneling Approxn.) |
| TWA | Time-weighted Average Limit |