The Colorado Department of Public Health and Environment has issued the following... WHAT...Air Quality Health Advisory for Ozone. WHERE...Archuleta and La Plata Counties. Locations include, but are not limited to Pagosa Springs, Durango, Hermosa, Honeyville, Rockwood, and the Southern Ute Reservation. WHEN...300 PM Thursday July 16 to 1000 PM Thursday July 16 IMPACTS...Ozone concentrations in the Unhealthy for Sensitive Groups category are likely within the advisory area Thursday afternoon and evening. HEALTH INFORMATION...Public Health Recommendations: Increasing likelihood of respiratory symptoms and breathing discomfort in active children and adults and people with lung disease, such as asthma. Active children and adults, and people with lung disease, such as asthma, should reduce prolonged or heavy outdoor exertion.