Site | State | PM AQI* (ug/m3) |
Marysville-7th Ave | WA | 6 |
Klamath Falls - Peterson Sc... | OR | 6 |
Seattle-South Park | WA | 6 |
Tacoma-L St | WA | 5 |
Portland - SE Lafayette | OR | 5 |
Anacortes-202 Ave (SO-AQS) | WA | 5 |
Colbert-Greenbluff | WA | 5 |
Omak-Colville Tribe | WA | 5 |
Colville-E 1st St | WA | 5 |
Medford Welch & Jackson | OR | 5 |