| Acronym | Meaning |
| NAPBN | National Air Pollution Background Network |
| CST | Central Standard Time |
| DDRP | Direct Delayed Response Program (for Long Term Effects Of Acid Rain) |
| ISD | Ion Stimulated Desorption |
| CEM | Continuous Emissions Monitoring |
| THMFP | Trihalomethane Formation Potential |
| ANP | Atrial Natriuretic Peptide |
| PHS | Prostaglandin H Synthase |
| LDTOF | Laser-Desorption Time-Of-Flight Mass Spectrometry |
| VADW | Vibrationally-adiabatic Distorted-wave Method |