Table 2.

Sensor’s characteristics.

Pollutant	Manufacturer	Model	Range	Unit
CO	Alphasense	CO-B4	0–50 ppm	ppm or mg/m3
NO2	Alphasense	NO2-B43F	0–20 ppm	ppb or μg/m3
PM10	Plantower	PMS7003	0~1000 μg/m3	μg/m3