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Front Range Air Quality Forecast & Colorado Smoke Outlook

FRONT RANGE AIR QUALITY FORECAST:
Tuesday, July 22, 2014, 2:10 PM

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

-- On Tuesday, ozone concentrations in the Unhealthy for Sensitive Groups category are most likely for locations west of the I-25 corridor from the west suburbs of Denver northward through Boulder and Loveland to near Ft. Collins. These elevated concentrations are possible as far west as the eastern slope of the Continental Divide. Active children and adults, and people with lung disease, such as asthma, should reduce prolonged or heavy outdoor exertion until 10 PM in those locations on Tuesday.

-- Elsewhere around the Front Range, unusually sensitive people should consider reducing prolonged or heavy outdoor exertion on Tuesday until midnight.

-- On Wednesday, Moderate concentrations of ozone are possible along and near the I-25 corridor to the north of the Palmer Divide, with High-Moderate concentrations most likely in eastern Larimer and northeastern Boulder counties, including in and around Ft. Collins. Unusually sensitive people should consider reducing prolonged or heavy outdoor exertion on Tuesday from 11 AM to 6 PM north of the Palmer Divide, especially in those areas with High-Moderate concentrations of ozone.

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 22, 2014, 2:30 PM

Numerous wildfires in the western United States and western Canada could produce areas of light haze and smoke in parts of Colorado through Wednesday. Smoke and haze may increase statewide on Thursday.

There are no Wildfire Smoke Health Advisories in effect in Colorado at this time.

Light to moderate smoke is also 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.

Public health recommendations for areas affected by smoke:
If smoke is thick or becomes thick in your neighborhood you may want to remain indoors. This is especially true for those with heart disease, respiratory illnesses, the very young, and the elderly. Fine particulates may reach the Unhealthy category where smoke is heavy. Consider limiting outdoor activity when moderate to heavy smoke is present. People with heart or lung disease, older adults, and children should avoid prolonged or heavy exertion; everyone else should reduce prolonged or heavy exertion. Consider relocating temporarily if smoke is present indoors and is making you ill. IF VISIBILITY IS LESS THAN 5 MILES IN SMOKE IN YOUR NEIGHBORHOOD, SMOKE HAS REACHED LEVELS THAT ARE UNHEALTHY.

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