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Front Range
No Ozone Action Day Alert in Effect (until 4 p.m. 06/27/2019)

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This is the Front Range Air Pollution Forecast effective 4PM on Wednesday, June 26, 2019:

No Advisories for Ozone or any other pollutant are in effect until at least 4 p.m. Thursday, June 27, 2019 for the Front Range Urban Corridor from El Paso County north to Larimer and Weld counties, including the Denver-Boulder area, Colorado Springs, Fort Collins and Greeley.

Breezy and favorable afternoon winds will help to keep ozone concentrations in the Good to Moderate range on Wednesday and Thursday.

Should atmospheric conditions suggest increased ground-level ozone concentrations, the Colorado Department of Public Health and Environment and the Regional Air Quality Council will issue an ozone advisory. In addition, if conditions warrant, the Colorado Department of Public Health and Environment will issue advisories for other pollutants. Check this website (https://colorado.gov/airquality/advisory.aspx) often for a report on current air quality conditions and to learn if an ozone action day alert is in effect.

For statewide conditions, forecasts and advisories, visit:
https://www.colorado.gov/airquality/colorado_summary.aspx

The highest Ozone related AQI at 5 o'clock PM Mountain Standard Time on June 26, 2019, is 71 which indicates Moderate ozone air quality. It was recorded by the FTCW ambient ozone monitor. Unusually sensitive individuals may experience respiratory symptoms. Unusually sensitive people should consider reducing prolonged or heavy outdoor exertion.

The highest Particulate Matter (PM2.5) related AQI at 5 o'clock PM Mountain Standard Time on June 26, 2019, is 32 which indicates Good Particulate Matter (PM2.5) air quality. It was recorded by the ADM ambient monitor.


Front Range Air Quality Forecast & Colorado Smoke Outlook
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FRONT RANGE AIR QUALITY FORECAST:
Wednesday, June 26, 2019, 2:00 PM MDT

Ozone concentrations are expected to be in the Good to Moderate range on Wednesday and Thursday. Moderate concentrations of ozone are anticipated throughout the Colorado Front Range region. Unusually sensitive people should consider reducing prolonged or heavy outdoor exertion from noon to 8 pm on Wednesday and Thursday.

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

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

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

Visibility on Thursday is expected to be Good to Moderate.

COLORADO SMOKE OUTLOOK
Wednesday, June 26, 2019, 2:10 PM MDT

Smoke transported from out-of-state fires will cause hazy skies in southeastern portions of Colorado on Wednesday and Thursday. Locations to the south of I-70 and to the east of I-25 may experience hazy conditions through Thursday. No health impacts are expected from this smoke.

The 90 acre Doe Canyon wildfire is located in western Dolores County, approximately 10 miles east of Dove Creek. A short distance from this fire, prescribed burning operations took place on Monday, June 24th. While the primary burning operations are complete on the prescribed burn area, smoldering of burned materials and residual smoke production will likely continue, in addition to smoke produced by the adjacent wildfire. Smoke from these fires may be visible at times from Highway 491 in this area. No significant public health impacts are expected.

The 159 acre Reveille wildfire is located in western Huerfano County, approximately 10 miles north of Gardner. Smoke from this fire may be visible from Highway 69 in areas to the north and northwest of Gardner, and south of Westcliffe. No public health impacts are currently expected from this fire.

Light to moderate concentrations of smoke are also possible near small wildfires and prescribed burns around the state.

What if there is a wildfire or smoke in your area?
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. Consider limiting outdoor activity when moderate to heavy smoke is present. 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.


Summer Ozone Program
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Ground-level ozone is an air pollution problem that impacts the health of all Coloradans. Exposure can cause acute respiratory problems and trigger asthma attacks. During Ozone Action Alerts, avoid rigorous outdoor activity during the heat of the day. Prolonged exposure can cause long-lasting damage to your lungs.

You CAN make a difference by doing your part to improve air quality along Denver’s Front Range. Combining or skipping just two car trips a week has a positive impact on our air quality. Find other easy solutions that fit your lifestyle from Simple Steps. Better Air. (http://www.SimpleStepsBetterAir.org), a program of the Regional Air Quality Council.

Additional Information
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WHAT IS AN ACTION DAY?: An Action Day for fine particulate matter, carbon monoxide, ozone or other pollutants indicates that either current air quality is unhealthy or conditions are expected to worsen later in the day or on the next day. Action Days for air pollutants generally indicate that air quality will be in either the Unhealthy or Unhealthy-for-Sensitive-Groups categories according to the Air Quality Index. Action Days always convey overarching public health recommendations, and, according to season, trigger a variety of mandatory and voluntary pollution prevention measures. For example, during the summer open burning is prohibited when an Action Day for ozone and/or fine particulates is in effect. During the winter, residential burning restrictions are in effect when an Action Day for Visibility is in effect.

For a detailed description of both the AIR QUALITY INDEX and the VISIBILITY STANDARD INDEX please visit https://www.colorado.gov/airquality/brochure.aspx

COLORADO OPEN BURN FORECAST: For those with permits for open burning, that is the burning of waste materials or vegetation outside, check the following webpage to find out if open burning is allowed today. Keep in mind that open burning is prohibited when an Action Day is in effect:
https://www.colorado.gov/airquality/burn_forecast.aspx

FOR CURRENT FRONT RANGE ACTION DAYS/ADVISORIES:
https://www.colorado.gov/airquality/advisory.aspx

FOR CURRENT AIR QUALITY CONDITIONS STATEWIDE:
https://www.colorado.gov/airquality/air_quality.aspx

SOCIAL MEDIA:
https://www.facebook.com/cdphe.apcd
https://twitter.com/cdpheapcd


AIR QUALITY NOTIFICATIONS:
https://www.colorado.gov/airquality/request_alerts.aspx(CDPHE automated e-mail alerts)
http://www.enviroflash.info/signup.cfm(CDPHE forecasts via automated e-mails from the EPA)