| Acronym | Meaning |
| AQCDS | Air Quality Criteria Documents |
| NDOL(ND0-L) | Neglect Of Differential Overlap-azimutal Quantum Number (of Valence Ao's) |
| PQL | Practical Quantitation Levels (of Pollutants |
| BMP | Biochemical Methane Potential |
| PCE | Tetrachloroethylene (perchloroethylene Or Perk) |
| MUSAC | Measurement Uncertainty Software In Analytical Chemistry |
| SEI | Secondary Electron Imaging |
| APEG | Alkaline Polyethylene Glycolate |
| NAREL | National Air And Radiation Environmental Laboratory |
| ENAMAP | Eastern North American Model Of Air Pollution |