Table 1.
Mobile monitoring instrumentation and sampling rates.
| Measurement | Rate | Instrument |
|---|---|---|
| Carbon Dioxide (CO2) | 0.9 s | Licor 6262 (2) and Licor 820 |
| Carbon Monoxide (CO) | 1 s | Aerodyne mini QC-TILDAS 1 (2230 cm−1) |
| Nitric Oxide (NO) | 1 s | Thermo 42i Chemiluminescence |
| Nitrogen Dioxide (NO2) | 1 s | Aerodyne Cavity Enhanced Phase Shift |
| Oxides of Nitrogen (NOy) | 1.4 s | Thermo 42i with external inlet-tip Mo Converter |
| Black Carbon (< 2.5 µm) | 3 s | Thermo 5012 Multi-Angle Absorption Photometer |
| Particle Extinction | 3 s | Aerodyne Cavity Enhanced Phase Shift |
| Particle Number Concentration | 1.8 s | TSI 3025A Condensation Particle Counter |
| Aromatics and Oxygenates, including benzene, toluene, acetone, acetaldehyde | 1.4 s | Ionicon Quadrupole PTR-MS 1 |
1 QC-TILDAS: Quantum Cascade Tunable Infrared Laser Differential Absorption Spectrometer; PTR-MS: Proton Transfer Reaction Mass Spectrometer.