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Front Range Air Quality Forecast & Colorado Smoke Outlook

FRONT RANGE AIR QUALITY FORECAST:
Tuesday, July 28, 2015, 2:00 PM

Ozone concentrations are expected to be in the Good to High-Moderate range on Tuesday and the Good to Unhealthy for Sensitive Groups range on Wednesday.

-- On Tuesday, Moderate concentrations of ozone will be possible anywhere north of the Palmer Divide, with High-Moderate concentrations most likely along and near the foothills from the southwest suburbs of Denver northward to around Boulder. Unusually sensitive people should consider reducing prolonged or heavy outdoor exertion to the north of the Palmer Divide until 2 AM on Wednesday, especially in those foothill locations with High-Moderate concentrations of ozone.

-- On Wednesday, ozone concentrations in the Unhealthy for Sensitive Groups category will be most likely for locations along and near the foothills from the west and northwest suburbs of Denver northward to around Boulder, with Moderate concentrations of ozone likely everywhere else to the north of the Palmer Divide. Active children and adults, older adults, and people with lung disease, such as asthma, should reduce prolonged or heavy outdoor exertion in those foothill locations on Wednesday from 2 PM until midnight. Everywhere else north of the Palmer Divide, unusually sensitive people should consider reducing prolonged or heavy outdoor exertion from 1 PM on Wednesday until 2 AM on Thursday.

Fine Particulate Matter concentrations are expected to be in the Good category on Tuesday and Wednesday.

Carbon Monoxide concentrations are expected to be in the Good category on Tuesday and Wednesday.

Nitrogen Dioxide concentrations are expected to be in the Good category on Tuesday and Wednesday.

Visibility is expected to be Moderate to Poor on Wednesday.


COLORADO SMOKE OUTLOOK:
Tuesday, July 28, 2015, 2:15 PM

Light to moderate smoke is possible near prescribed fires and small wildfires around the state.

What if there is a wildfire or smoke in your area that is not reported above?

The focus of the Colorado Smoke Outlook is on large fires (e.g., greater than 100 acres in size). Nevertheless, smoke from smaller fires, prescribed fires, and/or smoke from new fires not yet known to CDPHE air quality meteorologists may cause locally heavy smoke. If there is smoke in your neighborhood, see the public health recommendations below.

For additional information about smoke, visit:
http://www.colorado.gov/airquality/wildfire.aspx


Colorado Department of Public Health & Environment/APCD/Technical Services Program
visit us at: http://www.colorado.gov/airquality - all data are preliminary