Site | State | PM AQI* (ug/m3) |
Seattle-South Park | WA | 5 |
Toppenish-Yakama Tribe | WA | 5 |
Tacoma-S 36th St | WA | 4 |
Portland - SE Lafayette | OR | 4 |
Springfield City Hall | OR | 4 |
Portland Cully Helensview S... | OR | 4 |
Anacortes-202 Ave (SO-AQS) | WA | 4 |
Silverton | OR | 4 |
Portland Near Road | OR | 4 |
Eugene - Highway 99 | OR | 4 |