As temperatures rise, so do smog levels, says the lane regional air protection agency or LARAPA.
Smog, also known as ground level ozone, comes when heat mixes with fuel sources. Things like vehicles and lawn mowers.
Jo Niehaus with LRAPA, says increased smog doesn’t usually happen in the Willamette valley.
“We've been lucky enough to get pretty consistent ventilation throughout the summer. We don't see these super high temperatures often. Lately it has been a little bit of a concern just because we are having extended periods of pretty high temperatures and that can contribute to thicker smog accumulation. That does have a negative impact on people’s health.”
She also says the valley will see it’s highest smog accumulation levels Friday and Saturday. And hopefully it will clear over the weekend.
Those sensitive to poor air quality should contact their doctor if they have health concerns.