| Acronym | Meaning |
| APS | Autocorrelation Photon Spectroscopy |
| IPIRDW | Independent-process (and) Isolated-resonance (approxn. Using) Distorted Waves |
| FPEIS | Fine Particulate Emissions Information System |
| IGWMC | International Ground Water Modeling Center |
| PI | Polydispersity Index |
| SEVB | Semiempirical Valence Bond |
| AREAL | Atmospheric Research And Exposure Assessment Laboratory |
| CAC | Continuous Annular Chromatograph |
| SSC | Standard Saline Citrate |
| AODP | Advanced Ocean Drilling Program |