Front Range Air Quality Forecast & Colorado Smoke Outlook for August 5

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 Tuesday, August 4, 2020 for the Front Range Urban Corridor from Douglas County north to Larimer and Weld counties, including the Denver-Boulder area, Fort Collins and Greeley.

Stagnant weather conditions will result in ozone concentrations reaching the Moderate to Unhealthy for Sensitive Groups range on Wednesday. Ozone concentrations in the Unhealthy for Sensitive Groups category will be most likely for southern and western portions of the Denver metro area, including Highlands Ranch and Golden.

This Ozone Action Day Alert will remain in effect until at least 4 p.m. Wednesday, August 5, 2020.

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

The highest Ozone related AQI at 11 o'clock AM Mountain Standard Time on August 5, 2020, 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 11 o'clock AM Mountain Standard Time on August 5, 2020, is 47 which indicates Good Particulate Matter (PM2.5) air quality. It was recorded by the CAMP ambient monitor.

FRONT RANGE AIR QUALITY FORECAST:
Wednesday, August 5, 2020, 7:00 AM MDT

Ozone concentrations are expected to be in the Moderate to Unhealthy for Sensitive Groups range on TWednesday. Ozone concentrations in the Unhealthy for Sensitive Groups category will be most likely for southern and western portions of the Denver Metro area, including Highlands Ranch and Golden. In these areas, active children and adults, and people with lung disease, such as asthma, should reduce prolonged or heavy outdoor exertion from noon to 8 pm on Wednesday. For all other parts of the Front Range region, Moderate concentrations of ozone are expected, and unusually sensitive people should consider reducing prolonged or heavy outdoor exertion from noon to 10 pm on Wednesday.

Fine Particulate Matter concentrations are expected to be in the Good to Moderate range on Wednesday. Moderate concentrations of fine particulate matter are most likely for locations within the Denver metro area, so unusually sensitive people should consider reducing prolonged or heavy exertion in these areas on Wednesday.

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

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

Visibility on Wednesday is expected to be Moderate.

www.colorado.gov/airquality/advisory.aspx