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Canadian Lung Association: Air Quality Statistics
Get the statistics on air quality in Canada. Under the category of indoor air quality, get the facts and figures of exposure to second-hand smoke. Statistics on outdoor air quality in Canada is also provided.
US Environmental Protection Agency
Epa: Air Data
The AirData website gives you access to air quality data collected at outdoor monitors across the United States, Puerto Rico, and the U. S. Virgin Islands. The data comes primarily from the AQS (Air Quality System) database. You can...