| Acronym | Meaning |
| PVB | Projected Valence Bond |
| IDD | Iodine Deficiency Disorder |
| SDI | Silt Density Index |
| CEMS | Continuous Emissions Monitoring System |
| GCMS | Gas Chromatography Mass Spectrometry |
| IBAC | Immobilized Biomembrane Affinity Chromatography |
| DO | Dissolved Oxygen |
| WBC | White Blood Cell |
| CDS | Compliance Data System (US EPA Air Database) |
| FIA | Flow Injection Analysis |