Site | State | PM AQI* (ug/m3) |
Maple Falls-Azure Way | WA | 24 |
Eugene - Amazon Park | OR | 16 |
Eugene - Highway 99 | OR | 14 |
Salem - State Hospital | OR | 14 |
Marysville-7th Ave | WA | 13 |
Eugene - Wilkes Dr. | OR | 13 |
Portland - SE Lafayette | OR | 13 |
John Day Dayton St | OR | 12 |
Tacoma-L St | WA | 11 |
Seattle-South Park | WA | 11 |