| Acronym | Meaning |
| GISS | Goddard Institute For Space Studies |
| GPD | Gaussian Phase Distribution |
| OTS | Office Of Toxic Substances (USEPA) |
| MIEHM | Modified Iterative Extended Hueckel Method |
| DEMS | Differential Electrochemical Mass Spectrometry |
| APPH | Auger Peak To Peak Height |
| BEBO | Bond Energy Bond Order Method |
| CHCS | Chemical Hazards Communication Society |
| SSM | Synthetic Soil Matrix (US EPA) |
| CMASN | Calcium Oxide-magnesia-alumina-silica-sodium Oxide |