DENVER -- The Front Range is under an Ozone Action Day Alert.
Tuesday marks the second day in a row officials at the Colorado Department of Public Health and Environment issued the alert as hot temperatures and light winds allow ozone to reach significant levels.
The highest ozone levels recorded in the area during the alert was at 1 p.m. Tuesday. The reading indicated moderate ozone air quality, which could cause unusually sensitive individuals to experience respiratory symptoms.
An alert is issued when air quality dips to an unhealthy level or when conditions are expected to make pollution levels higher.