Table 1.
Specifications of the stationary Monitoring Sensor Units (MSUs) for gaseous pollutant measurement.
| Pollutant | CO | NO | NO2 | O3 | NO2 | O3 | Total VOC (TVOC) (CO2-Equivalent) |
|---|---|---|---|---|---|---|---|
| Sensor technology | Electrochemical (EC) |
Electrochemical (EC) |
Electrochemical (EC) |
Electrochemical (EC) |
Metal oxide (MO) | Metal oxide (MO) | Metal oxide (MO) |
| Sensor provider | Alphasense | Alphasense | Alphasense | Alphasense | Applied Sensors | Aeroqual | Applied Sensors |
| Sensor type | CO-B4 | NO-B4 | NO2-B42F | OX-B421 | iAQ-100 | SM50 | iAQ-100 |
| Platform manufacturer | Environmental Instruments (UK) | Environmental Instruments (UK) | Environmental Instruments (UK) | Environmental Instruments (UK) | Perkin Elmer (USA) | Perkin Elmer (USA) | Perkin Elmer (USA) |
| MSU type | AQMesh | AQMesh | AQMesh | AQMesh | Elm | Elm | Elm |
| Measurement range Sampling frequency |
0–5000 ppb 1 min |
0–2000 ppb 1 min |
0–200 ppb 1 min |
0–200 ppb 1 min |
10–2000 ppb 20 s |
0–150 ppb 1 min |
0–2000 ppm 20 s |