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NOTICE:

This Air Info Now website will be decommissioned in the near future due to its outdated technology. Most of the information on this website is now available on the Pima County Department of Environmental Quality's website. If you have questions or would like additional information, please contact Beth Gorman of PDEQ at (520) 724-7446.

Welcome to the Pima County Department of Environmental Quality Air Info Now web site, dedicated to providing current air quality information for the metropolitan Tucson area.  This website was developed with a grant from U.S. EPA and with assistance from The University of Arizona, The American Lung Association and Pima Association of Governments.  Here you will find information on air pollutants, their health effects, activities to help understand air pollution along with historic and current monitoring data.

This page provides links to these areas and also displays a quick snapshot of current air quality conditions. The updating photos show the current visibility from the rooftop of the County's downtown administration building. In the table below are air quality index (AQI) values, descriptors and applicable cautionary statements for the most currently polled pollution data.
 

Air Quality Index Values
For the Most Current Polled Data

( hour ending at 7:00 on 1/25/2015) 

Pollutant Highest Air Quality Index (AQI) Value Monitoring Site Air Quality Index (AQI) Category Health Effects Statement
Carbon Monoxide 6 Cherry & Glenn Good None
Ozone 36 Fairgrounds Good None
PM10 27 Near Grant & First Avenue Good None
PM2.5 53 Near Grant & First Avenue Moderate None
The highest average wind speed = 11.5mph blowing from the southeast at 118° at the Fairgrounds site. The highest average temperature was 51.8°F at the 22nd & Alvernon / Fairgrounds sites.

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