| Acronym | Meaning |
| CASTNET | Clean Air Status And Trends Network |
| PDS | Photothermal Deflection Spectroscopy |
| AMP | Adenosine 5'-monophosphate |
| CMOD | Crack Mouth Opening Displacement |
| INMS | Institute For National Measurement Standards |
| FALS | Familial Amyotrophic Lateral Sclerosis |
| GNLSE | Generalized Nonlinear Schroedinger Equation |
| ASTDR | Agency For Toxic Substances And Disease Registry |
| FRS | Fragment Separatorpar |
| AASHO | American Association Of State Highway Officials |