How many monitoring sites are there in Pima County?
Staff in the air quality monitoring unit at Pima County Environmental Quality operate approximately 80 instruments at 18 locations as part of the Arizona statewide network to monitor the levels of pollutants known to affect people’s health. In addition to monitoring the Criteria Pollutants; carbon monoxide, ozone, sulfur dioxide, oxides of nitrogen, PM10 and PM2.5; for which the EPA has established National Ambient Air Quality Standards, PDEQ monitors various meteorological parameters that effect air pollution. These include wind speed, wind direction, temperature, relative humidity, and solar radiation. In addition, staff conduct special air quality studies.
