The Arizona Department of Environmental Quality (ADEQ) operates a network of Portable Particulate Monitors across Arizona. These monitors record hourly average concentrations of particulates which have been linked to health and visibility concerns.

The purpose of this web page is to provide to the public in near real time data recorded by the Portable Particulate Monitor Network. Hourly averages are color-coded based on the EPA Air Quality Index (AQI) scale, though strictly speaking the AQI is defined for a daily value.

Click on a location name below or a colored square on the map to the right to access data for that monitoring station in a new window. The default data graph will present the current day's data, but all historical data can be accessed through the selection tools below the graph.

For more information about this network contact:

Bernard Lum, Monitoring Unit Manager
Air Quality Division
(602) 771-2364
Bernard.Lum@azdeq.gov