Site | State | PM AQI* (ug/m3) |
Maple Falls-Azure Way | WA | 18 |
Mill City | OR | 14 |
Marysville-7th Ave | WA | 11 |
John Day Dayton St | OR | 11 |
Omak-Colville Tribe | WA | 8 |
Seattle-South Park | WA | 8 |
Kent-James & Central | WA | 8 |
Lyons | OR | 8 |
Darrington-Fir St | WA | 8 |
Cave Junction Forest Service | OR | 7 |