A heatwave has hit much of western Oregon. In the Willamette Valley, an Extreme Heat Warning is now in place through at least Tuesday evening.
In Lane County, the Lane Regional Air Protection Agency has now issued an air quality advisory until at least Monday evening.
Elevated levels of ozone pollution, or smog, are expected due to high temperatures and low winds.
Ozone forms when sunlight and heat react with air pollutants, like exhaust from cars and chemicals in aerosols.
It can also produce a haze that is "harmful to people's health—especially young ones, people that are experiencing lung issues, pregnant folks,” according to LRAPA spokesperson Matt Sorensen.
Smog can irritate the eyes, nose, lungs, and can worsen respiratory conditions like asthma and COPD.
LRAPA recommends c