Site | State | PM AQI* (ug/m3) |
Maple Falls-Azure Way | WA | 22 |
Omak-Colville Tribe | WA | 22 |
Colville-E 1st St | WA | 18 |
Ontario May Roberts Element... | OR | 17 |
Newport-Calispel | WA | 16 |
Brewster Mobile | WA | 15 |
Sunnyside-S 16th | WA | 14 |
Yakima-4th Ave | WA | 13 |
John Day Dayton St | OR | 12 |
Spokane-Augusta Ave | WA | 12 |