| Acronym | Meaning |
| PDR | Photon-dominated Region |
| FATE | Functional Attributes In Terrestrial Ecosystems |
| GAEP | Generalized Atomic Effective Potential |
| LOESS | Locally Weighted Smoothers [in Modeling] |
| ARXPS | Angular Resolved X-ray Photoelectron Spectroscopy |
| ND | Nitrification Denitrification |
| PCB | Polychlorinated Biphenyl |
| LIFI | Laser-induced Fluorescence Imaging |
| ELM | Emulsion Liquid Membranes |
| CIA | Capillary Ion Analysis |