Site | State | PM AQI* (ug/m3) |
The Dalles - Cherry Heights | OR | 18 |
Hermiston - Municipal Airport | OR | 16 |
Sunnyside-S 16th | WA | 15 |
Pendleton - McKay Creek | OR | 15 |
Walla Walla-12th St | WA | 13 |
Dayton-W Main | WA | 11 |
Kennewick-Metaline | WA | 11 |
Marysville-7th Ave | WA | 10 |
Clarkston-13th St | WA | 10 |
Mesa-Pepoit Way (temp SO) | WA | 10 |