Current Air Quality Information
The ultimate goal of the Pima County Department of Environmental Quality (PDEQ) air quality control program is to reduce the concentration of harmful air contaminants in ambient air to safe and healthy levels, and maintain those levels. A key process in controlling air pollution is to define the nature and extent of air quality problems through monitoring. Ambient air monitoring in the Tucson, Arizona area has been conducted by PDEQ and its predecessors since the 1960's. Pima County is currently in attainment of all air pollutants monitored, however, this region is very close to non-attainment of the new EPA ozone standard.
PDEQ monitors six criteria pollutants in the Tucson and Green Valley area in accordance with regulations established by the Environmental Protection Agency (EPA). Data is reported hourly here, to the EPA's Air Now website and other agencies. An Air Index Now report, based on the Air Quality Index (AQI), is generated hourly for public notification of current air quality conditions and possible health effects. Below are the current AQI values.
Besides the tabs below the Information, Education, Public Outreach
and the Clean Air Program
area will have additional information about air quality. As part of its role in the community, PDEQ offers educational, regulatory and professional group tours of its air quality monitoring facilities. Our highly trained staff can explain various aspects of air quality monitoring. Many schools, including the University of Arizona, utilize these tours in their curriculum. Please call our Community Outreach Contact, at (520) 724-7400 if you would like more information on this service.