| Acronym | Meaning |
| GAXRD | Glancing Angle X-ray Diffraction |
| RAC | Reference Air Concentration (USEPA) |
| A/PI | Ab Initio Perturbed Ion (quantum Clacn. Method) |
| GIXAS | Grazing Incidence X-ray Absorption Spectroscopy |
| CET | Collisional Energy Transfer |
| PAGIF | Polyacrylamide Gel Isoelectric Focusing |
| AWPCF | Air And Water Pollution Control Facilities |
| MSPO | Method Of Successive P |
| CXC | Chandra X-ray Center |
| DAPS | Disappearance Potential Spectroscopy |