| Acronym | Meaning |
| CSF | Catalyzed Soot Filter |
| HHPN | Hydraulic High Pressure Nebulization |
| ZSM | Zeolite Socony Mobil |
| VLF | Very Low Frequency (radiowaves) |
| DCP | Direct Current Plasma |
| DETOCSY | Diffusion Edited Total Correlation Spectroscopy |
| COD | Continuous Optical Discharge |
| GEMAP | Geocoded Emission Modeling And Projection |
| CIRES | Cooperative Institute For Research In Environmental Sciences |
| NOS | Nitric Oxide Synthase |