Site | State | PM AQI* (ug/m3) |
Clarkston-13th St | WA | 9 |
Omak-Colville Tribe | WA | 7 |
Colbert-Greenbluff | WA | 7 |
Airway Heights-West 12th (US) | WA | 6 |
Sunnyside-S 16th | WA | 6 |
Ellensburg-Ruby St | WA | 6 |
Spokane-Augusta Ave | WA | 6 |
Seattle-South Park | WA | 6 |
Enterprise - US Forest Service | OR | 6 |
Anacortes-202 Ave (SO-AQS) | WA | 6 |