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Air Quality IndexThe Air Quality Index, or AQI, is calculated and reported to the public from air monitoring stations from Six Airsheds (see Good AQI(%) by Airsheds). This index associates concentrations of five major air pollutants to provincial air quality Objectives and federal air quality objectives. Outdoor concentrations of carbon monoxide, fine particulate matter, nitrogen dioxide, ozone and sulphur dioxide are used to determine whether the quality of the air is Good, Fair, Poor or Very Poor. A minimum of four of the above listed pollutants is required to calculate the AQI. The AQI is reported every hour, 24 hours a day, and is available from an automated telephone system by calling toll free 1-877-247-7333. In Edmonton, the AQI can be accessed by dialing 427-7273. Current AQI conditions are also reported at Alberta Environment's Web site. |
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