| Acronym | Meaning |
| HFA | Humic And Fulvic Acids |
| ADE | (thermal) Adsorption-desorption Equilibrium |
| GX | Generalized Exchange |
| FPD | Flame Photometric Detector (gas Chromatography) |
| AUBF | Anaerobic Upflow Biofilter |
| IILE | Ion-induced Light Emission |
| SWORD | Surveillance Of Work Related And Occupational Respiratory Disease |
| RBM | Rigid Band Model |
| CHEC | Commonwealth Human Ecology Council |
| NEPA | National Environmental Policy Act |