| Acronym | Meaning |
 | PHF | Projected Hartree Fock |
| HHPN | Hydraulic High Pressure Nebulization |
| NADAP | National Atmospheric Deposition Assessment Program |
| DBE | Deep Basin Experiment |
| CPA | Coupled-pair Approximation |
| POM | Polarized Optical Microscopy |
| ASMD | Atmospheric Sciences Modeling Division (US EPA) |
| ANWR | Artic National Wildlife Refuge |
| WCRP | World Climate Research Programme |
| FRC | Federal Records Center |
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