Table 1.
Monitoring instruments on the mobile monitoring platform used during fall and winter seasons
| Instrument | Measurement Parameter | Response timea (Inlet to record) | Data time resolution |
|---|---|---|---|
| Testo DiSCmini | UFP count (10–700 nm), mean size | 2 s | 1 s |
| TSI OPS, Model 3330* | Particle size (0.3–10 μm) | 3 s | 5 s |
| Teledyne API Model 300E | CO | 21 s | 1 s |
| LI-COR, Model LI-820 | CO2 | 7 s | 1 s |
| Teledyne-API Model 200E | NO, NO2, NOx | 22 s | 1 s |
| Magee Scientific Aethalometer, AE-33 and AE-42 | Black Carbon (BC) | 25 s | 1 s |
| Vaisala Sonic Anemometer and Temperature/ RH sensor | Surface winds, temperature, relative humidity (RH) | - | 1 s |
| Qstar travel recorder XTb | GPS location | - | 1 s |
| Eurotherm Chessell Graphic DAQ Recorder | Data-logger | - | 1 s |
a
Response time is an averaged value for smoke test results and includes both the instrument response time and time to arrive from the inlet (Choi et al., 2013 (S3)).
b
The GPS unit had 2.5 m accuracy when they are able to utilize wide area augmentation system (WAAS), a condition that applied during the measurements described here.
*
Data not available during fall due to an instrument malfunction.