| Acronym | Meaning |
| ISC | Industrial Source Complex |
| BJH | Bopp-Jancso-Heinzinger (potential Function) |
| IVNAA | In Vivo Neutron Activation Analysis |
| ORV | Optical Retardation Velocity |
| TARIS | Thermal Atomization Resonance Ionization Spectrometry |
| UMDE | Ultramicrodisk Electrode |
| HIERD | Heavy Ion Elastic Recoil Detection |
| LAXRD | Low-angle X-ray Diffraction |
| CAA | Clean Air Act Of 1970 |
| IGBP | International Geosphere Biosphere Programme |