|Action Day for Fine Particulates in Mesa County, including Grand Junction.
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Outside the Denver Metro Area
Action Day for Fine Particulates
Issued for Mesa County, including the city of Grand Junction
Issued by the Colorado Department of Public Health and Environment.
Issued at 4:00 PM Wednesday, December 18, 2013.
Affected Areas: The Grand Valley in Mesa County, including Grand Junction.
Advisory in Effect: 4:00 PM Wednesday 12/18/13 to 4:00 PM Thursday 12/19/13.
Fine Particulate Matter concentrations are expected to be in the Moderate to Unhealthy-for-Sensitive-Groups range Wednesday afternoon through Thursday morning. Fine particulate concentrations should start dropping Thursday afternoon as a cold front approaches the area. People with heart or lung disease, older adults, and children should reduce prolonged or heavy exertion through Thursday afternoon within the Grand Valley in Mesa County.
COLORADO SMOKE OUTLOOK:
There are no Wildfire Smoke Health Advisories in effect in Colorado at this time.
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.
Public health recommendations for areas affected by smoke:
For additional information about smoke, visit:
ACTION DAYS: An Action Day for fine particulate matter (particulates), 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 trigger voluntary pollution prevention measures, which may vary by season, and public health recommendations.
The AIR QUALITY INDEX reports the daily level of air pollution on an hourly basis. The index reports the highest level of either carbon monoxide, fine particulates or ozone depending on which pollutant has the greatest hourly concentration. Values greater than 100 for carbon monoxide, fine particulates and ozone indicate exceedances of the pollutant's state and federal standards. Air Quality Index values between 0-50 are good, 51-100 moderate, 101-150 unhealthy for sensitive groups, 151-200 unhealthy, 201-300 very unhealthy, and over 300 hazardous.
COLORADO OPEN BURN FORECAST: For those with permits for Open Burning, that is burning of waste materials or vegetation outside, check the following webpage to find out if open burning is allowed today:
FOR CURRENT AIR QUALITY INFORMATION AND UPDATES:
ABOUT THE AIR QUALITY INDEX: