Ozone is a created by the sun's heat and light acting upon gases and pollution in the atmosphere. Ozone levels change throughout the day and are generally highest in the afternoon hours.
Exposure to high summer ozone levels can cause:
The Utah Departments of Health and Environmental Quality have developed recommendations for outdoor physical activity in the summertime to avoid unhealthy exposure to summertime ozone.
Click here for the average number of high ozone level days throughout the state of Utah.
Click here for the average number of high ozone level days along the Wasatch Front.