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This is the Denver Metro Air Pollution Forecast effective 4PM on Friday, March 24, 2023:
No Advisories are in effect for the seven-county Denver-Boulder metropolitan area until at least 4 PM Saturday, March 25, 2023. Good or moderate air quality conditions are expected.
Strong westerly winds on Saturday will result in Good to Moderate visibility conditions, with possible periods of weather exclusion due to snow showers.
For statewide conditions, forecasts and advisories, visit:
https://www.colorado.gov/airquality/colorado_summary.aspx
A poorly maintained vehicle pollutes more than a well maintained one. If you must drive, properly maintain your vehicle. We'll all breathe easier!
At 1AM (MST), Saturday, 3/25/2023 the highest AQI value was 51 for Ozone which indicates Moderate air quality. Unusually sensitive individuals may experience respiratory symptoms. Unusually sensitive people should consider reducing prolonged or heavy outdoor exertion.
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| FRONT RANGE AIR QUALITY FORECAST: Friday, March 24, 2023, 2:00 PM MST Ozone concentrations are expected to be in the Good to Moderate range on Friday and Saturday. Moderate concentrations are most likely on Friday in locations around the Denver Metro area above 6000', including Evergreen and Blackhawk, and in the Pikes Peak area, including Colorado Springs and surrounding areas. In these locations unusually sensitive people should consider reducing prolonged or heavy outdoor exertion on Friday and Saturday. Fine Particulate Matter concentrations are expected to be in the Good category on Friday and Saturday. Carbon Monoxide concentrations are expected to be in the Good category on Friday and Saturday. Nitrogen Dioxide concentrations are expected to be in the Good category on Friday and Saturday. Visibility in Denver on Saturday is expected to be Good to Moderate. COLORADO SMOKE OUTLOOK: Friday March 24, 2023, 2:00 PM MST Light to moderate concentrations of smoke are 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: |
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The Winter High Pollution Advisory Program is coordinated by the Air Pollution Control Division of the Colorado Department of Public Health and Environment.
Winter season air pollution forecasts are issued daily from October 31 through March 31 at 4 p.m. When conditions warrant, forecasts will include information about Action Days and subsequent indoor burning restrictions.
An Action Day for fine particulates, carbon monoxide or ozone 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 trigger mandatory restrictions that limit indoor burning to approved devices only, voluntary driving reductions, and public health recommendations.
An Action Day for Visibility alone indicates that the Visibility Standard Index for visual air quality is expected to be poor on the current or following day. An Action Day for Visibility will trigger mandatory restrictions on indoor burning and voluntary driving reductions for the seven-county Denver-Boulder metropolitan area only.
When no advisories are issued, air quality is good or moderate and is expected to remain so during the effective period of the forecast. No restrictions are in place.
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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)
Forecasts & Monitoring
