| Acronym | Meaning |
| 7-ACA | 7-aminocephalosporanic Acid |
| ISCA | Ionization Spectroscopy For Chemical Analysis |
| OPE | Ozone Production Efficiency |
| CEES | 2-chloroethyl Ethyl Sulfide |
| SE | Symmetric Eikonal (approxn. In Calcns. On Ion Scattering) |
| CNDO/S | Complete Neglect Of Differential Overlap/spectroscopic |
| BAZ | Biologically Active Zones |
| ATSR | Along-Track Scanning Radiometer |
| CEARC | Canadian Environmental Assessment Research Council |
| EBCT | Empty Bed Contact Time |