Denver’s air quality today is in the moderate range for both ozone and fine particulate matter. As of 5 PM yesterday, the Air Quality Index reading for ozone was 58, and for PM2.5 (fine particulate matter) it was 64. Both are classified as moderate, meaning air quality is acceptable, but there might be a minor health concern for people unusually sensitive to pollution. Those individuals, particularly those with heart or lung conditions and older adults, should consider limiting prolonged or heavy outdoor activities.

No air quality advisories or alerts are currently in effect for ozone or other pollutants in the Denver area, and this has been forecast to continue through at least 4 p.m. today. Most other monitored pollutants, including carbon monoxide and nitrogen dioxide, are in the good category, and visibility is considered good to moderate across the Front Range.

Smoke from wildfires in northwestern Colorado is making its way across the region, but conditions in Denver and the Northern Front Range have improved compared to Thursday. On Thursday, there was an action day for multiple pollutants, but air quality has since gotten better, with both ozone and particulate levels decreasing. The improvement is welcome, although anyone sensitive to smoke or pollution should continue to monitor real-time data and take appropriate precautions, such as staying indoors during periods of visible haze or avoiding strenuous outdoor exercise.

Ground-level ozone remains a concern during the summer, as hot temperatures and sunlight can increase its production. Even moderate levels can cause acute respiratory symptoms, trigger asthma attacks, and aggravate chronic lung conditions, especially in children, older adults, and those with pre-existing respiratory issues.

Overall, Denver’s air is healthier than earlier in the week, but moderate levels of ozone and particulate matter call for a bit of caution for those who are unusually sensitive to air pollution.