| Acronym | Meaning |
| OW | Office Of Water |
| SMO | Statistical Model Of Overlap |
| TEF | Toxicity Equivalency Factor |
| EAG | Exposure Assessment Group |
| IGES | Institute Of Global Environment And Society |
| BFS | Beam Foil Spectroscopy |
| OARM | Office Of Administration And Resources Management (USEPA) |
| GESAMP | Group Of Experts On The Scientific Aspects Of Marine Pollution |
| NADP | National Atmospheric Deposition Program |
| MOPITT | Measurements Of Pollution In The Troposphere |