The Colorado Department of Public Health and Environment updates air pollution forecasts at 4:00 p.m. from November 1 through March 30. The Metropolitan Area Visibility Standards Index and the Pollutant Standards Index determine these forecasts. There are two pollution forecasts that can be issued. A "No Action Day" forecast indicates the air quality is good and wood burning and driving are okay. An "Action Day" forecast indicates current air quality is at or about to exceed standards and wood burning bans and requests for driving limitations are put into effect. If you want pollution forecasts, call Indoor Burning Advisory line at 303-758-4848. In 2009, the City adopted more stringent limitations on the opacity of smoke emitted from chimneys in effect the entire year. If you believe that a chimney smoke plume exceeds 20% opacity for over 20 minutes, call 720-898-7807 to report the possible violation. If you would like information about the City’s air quality program or would like to report a violation of the wood burning ban on a high pollution day, call 720-898-7807 or submit a service request for further inquiries.
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