LANE COUNTY — With the developing heatwave across the region, the Lane Regional Air Protection  Agency (LRAPA) is issuing an air quality advisory beginning Saturday, Aug. 23, 2025, for the  Eugene/Springfield metropolitan area due to elevated levels of ozone pollution, or smog. LRAPA expects the smog air quality advisory due to remain until 10 p.m. Monday, Aug. 25, 2025. 

“The combination of heat, sunshine, and minimal wind are prime conditions for the formation of ground level ozone, the main component of smog,” said Matt Sorensen, Public Affairs Manager for LRAPA. 

Residents, especially those in sensitive groups, are encouraged to take precautions to protect their health  during this advisory. Sensitive groups include children, older adults, anyone pregnant, and people with  lung or heart conditions. When ozone levels are elevated, these individuals should limit prolonged  outdoor exertion, particularly in the afternoons and early evenings when ozone concentrations tend to  peak. 

To help reduce the formation of ozone pollution, LRAPA recommends: 

– Limit driving by using public transit, carpooling or other alternative transportation – Avoid unnecessary engine idling 

– Refuel vehicles during cooler evening hours 

– Postpone using gas-powered mowers or yard equipment until cooler periods of the day – Avoid using aerosol sprays or oil-based paints 

Smog forms when hot temperatures, direct sun, and low winds combine with exhaust from cars, gas powered engines and chemicals in paints and aerosols. These air pollutants react with sunlight and heat to  produce smog (ozone) and haze. 

Ozone irritates the eyes, nose, and lungs and can worsen conditions like asthma and COPD. If you  experience coughing, chest pain, shortness of breath or other respiratory symptoms, consult your  healthcare provider. 

This ozone advisory for the Eugene/Springfield area is expected to remain in effect until cooler  temperatures and improved ventilation conditions arrive, likely Tuesday morning. LRAPA will continue  to monitor the situation and provide updates as conditions change.