| Acronym | Meaning |
 | ITFW | Improved Thomas-Fermi-Weizaecker (model) |
| PANNA | Pesticide Action Network North America |
| OA | Office Of The Administrator |
| RITP | Recycling Isotachophoresis |
| RSD | Relative Standard Deviation |
| HVIO | High Volume Industrial Organic |
| AO | Office Of The Administrator |
| GEMAP | Geocoded Emission Modeling And Projection |
| ALSP | Atmosphere And Land Surface Processes |
| AIC | Air Information Center |
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