| Acronym | Meaning |
| OEMO | One Electron Molecular Orbital |
| ERD | Emergency Response Division |
| TEOS | Tetraethyl Orthosilicate |
| SCEHM | Soil Chemical Exchange Of Heavy Metals Model |
| SEHF | Spin-extended Hartree-Fock |
| FTS | Fourier Transform Spectroscopy |
| HHPN | Hydraulic High Pressure Nebulization |
| ECETOC | European Chemical Industry |
| WHO | World Health Organization |
| IOC | Inorganic Chemical |