Air Quality Index (AQI) reading calculated using PM2.5 data, from a site on the east foothills of Logan, Utah. Data also includes National Weather Service readings for temperature, barometric pressure, and relative humidity from the Logan-Cache Airport.
Readings will not be accurate, and should not be relied on. For example, it may be measuring an Air Purified Room, or simply ran out of power. Other longer term charts can also be seen at: http://pm25sg.neocities.org/ (Available), http://cohi.neocities.or