Site | State | PM AQI* (ug/m3) |
Clarkston-13th St | WA | 10 |
Anacortes-202 Ave (SO-AQS) | WA | 9 |
Spokane-Augusta Ave | WA | 9 |
Seattle-Duwamish | WA | 9 |
Colbert-Greenbluff | WA | 9 |
Spokane-E Broadway Ave (US) | WA | 8 |
Cove - City Hall | OR | 8 |
Maple Falls-Azure Way | WA | 8 |
Seattle-South Park | WA | 8 |
Custer-Loomis (SO-AQS) | WA | 8 |