| Acronym | Meaning |
| ATM | Aerosol Trajectory Model |
| MINDO | Modified Intermediate Neglect Of Differential Overlap |
| PMTDI | Provisional Maximum Tolerable Daily Intake |
| UARP | Upper Atmospheric Research Program |
| FFCA | Federal Facility Compliance Act |
| HWERL | Hazardous Waste Engineering Research Laboratory (USEPA Cincinnati) |
| PFDT | Partial Flow Dilution Tunnel |
| CSGWPP | Comprehensive State Ground Water Protection Program |
| TEOM | Tapered Element Oscillating Microbalance |
| GBIF | Global Biodiversity Information Facility |