The Colorado Department of Public Health and Environment and the Regional Air Quality Council have issued an OZONE ACTION DAY ALERT at 4 p.m. on Thursday, August 24, 2017 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.
Stagnant winds and high temperature will create conditions for enhanced ozone on Friday, with highest concentrations expected in the southern and western suburbs of the Denver Metro Area.
This Ozone Action Day Alert will remain in effect until at least 4 p.m. Friday, August 25, 2017.
For statewide conditions, forecasts and advisories, visit:
http://www.colorado.gov/airquality/colorado_summary.aspx
The highest Ozone related AQI at 1 o’clock PM Mountain Standard Time on August 24, 2017, is 44 which indicates Good ozone air quality. It was recorded by the RFN ambient ozone monitor.
The highest Particulate Matter (PM2.5) related AQI at 1 o’clock PM Mountain Standard Time on August 24, 2017, is 52 which indicates Moderate Particulate Matter (PM2.5) air quality. It was recorded by the ADM ambient monitor. Respiratory symptoms possible in unusually sensitive individuals, possible aggravation of heart or lung disease in people with cardiopulmonary disease and older adults. Unusually sensitive people should consider reducing prolonged or heavy exertion.
Front Range Air Quality Forecast & Colorado Smoke Outlook
FRONT RANGE AIR QUALITY FORECAST:
Thursday, August 24, 2017, 2:10 PM MDT
Ozone concentrations are expected to be in the Good to Moderate range on Thursday. Moderate concentrations of ozone are expected throughout the Colorado Front Range Region including the Denver Metro area, Fort Collins, Greeley, and Colorado Springs. Unusually sensitive people should consider reducing prolonged or heavy outdoor exertion in these areas from noon until 8 PM on Thursday. Ozone concentrations are expected to be in the Moderate to Unhealthy for Sensitive Groups range on Friday. Unhealthy for Sensitive Groups conditions are expected in the southern and western suburbs of the Denver Metro Area. Active children and adults, and people with lung disease, such as asthma, should reduce prolonged or heavy outdoor exertion in these areas from noon until 8 PM on Friday.
Fine Particulate Matter concentrations are expected to be in the Good category on Thursday and Friday. However, Moderate concentrations are possible near busy roadways and heavy industrialized areas within the Denver Metro Area. Unusually sensitive people should consider reducing prolonged or heavy exertion in these areas on Thursday and Friday.
Carbon Monoxide concentrations are expected to be in the Good category on Thursday and Friday.
Nitrogen Dioxide concentrations are expected to be in the Good category on Thursday and Friday.
Visibility on Friday is expected to be Good to Moderate.
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