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Welcome to the Pima County Department of Environmental Quality Air Info
Now web site, dedicated to providing current air quality
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
, activities to help
understand air pollution
along with historic and current monitoring

This page provides links to these areas and also displays a quick
snapshot of current air quality conditions. The updating photos
show the current
from the rooftop of the County’s downtown administration
building. In the table below are air quality index
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 4:00 on 7/14/2014) 

Pollutant Highest Air Quality Index (AQI) Value Monitoring Site Air Quality Index (AQI) Category Health Effects Statement
Carbon Monoxide 3 22nd St. & Alvernon Good None
Ozone 27 Tangerine & Camino de Oeste Good None
PM10 11 Green Valley Good None
PM2.5 33 Near Grant & First Avenue Good None
The highest average wind speed = 5.9mph blowing from the southeast at 126° at the Coachline site. The highest average temperature was 75.2°F at the Coachline site.
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Problems? Questions? Comments?   Contact: PDEQ


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