Site | State | PM AQI* (ug/m3) |
Sunnyside-S 16th | WA | 13 |
Clarkston-13th St | WA | 10 |
Seattle-10th & Weller | WA | 10 |
Spokane-Augusta Ave | WA | 9 |
Spokane-E Broadway Ave (US) | WA | 9 |
Seattle-Duwamish | WA | 9 |
Seattle-South Park | WA | 9 |
Kennewick-Metaline | WA | 9 |
Twisp-Glover St | WA | 9 |
Hermiston - Municipal Airport | OR | 8 |