| Acronym | Meaning |
| SMO | Statistical Model Of Overlap |
| GFCS | Gas Filter Correlation Spectroscopy |
| ULEV | Ultra Low Emission Vehicle |
| FID | Flame Ionization Detector (gas Chromatography) |
| RQ | Respiratory Quotient |
| ATOFMS | Aerosol Time-of-flight Mass Spectrometry |
| HSC | Hematopoietic Stem Cells |
| MGSA | Melanoma Growth Stimulatory Activity |
| SOUR | Specific Oxygen Uptake Rate |
| CSF | Carcinogenic Slope Factor |