| Acronym | Meaning |
| SATI | Spectral Airglow Temp. Imager |
| RTD | Residence Time Distribution |
| SCISAS | Size Classifying Isokinetic Sequential Aerosol Sampler |
| PWFB | Plane-wave First Born |
| POTW | Publicly Owned Treatment Works |
| LCGO | Linear Combination Of Gaussian Orbitals |
| TH | Total Hardness [of Water] |
| VMT | Vehicle Miles Traveled |
| ARSPIPES | Angle Resolved Spin Polarised Inverse Photo Emission Spectroscopy |
| NETAC | National Environmental Technol. Applications Corporation |