Site | State | PM AQI* (ug/m3) |
Seattle-South Park | WA | 7 |
Seattle-Duwamish | WA | 6 |
Tacoma-S 36th St | WA | 6 |
Marysville-7th Ave | WA | 6 |
Klamath Falls - Peterson Sc... | OR | 5 |
Cottage Grove City Shops | OR | 5 |
Colville-E 1st St | WA | 5 |
Sunnyside-S 16th | WA | 5 |
Clarkston-13th St | WA | 5 |
Colbert-Greenbluff | WA | 5 |