Site | State | PM AQI* (ug/m3) |
Colville-E 1st St | WA | 7 |
Marysville-7th Ave | WA | 6 |
Klamath Falls - Peterson Sc... | OR | 5 |
Sunnyside-S 16th | WA | 5 |
Seattle-South Park | WA | 5 |
Seattle-Duwamish | WA | 5 |
Colbert-Greenbluff | WA | 4 |
Port Townsend-San Juan | WA | 4 |
Lakeview - Center & M | OR | 4 |
Portland Near Road | OR | 4 |