SmogRank / World / United States / Oregon / September 2024
Most polluted cities in Oregon, United States, September 2024
41 cities in Oregon, United States ranked by their average PM2.5 over the 30 days. Worst: Bend at 17.0 µg/m³, #102 of 1,964 cities in the world. Cleanest: Newport at 2.8. A city needs measurements on 70% of the days to be ranked.
Ranked by unhealthy days: the share of each city's measured days with a daily mean over 35.4 µg/m³ (US AQI 101+), Unhealthy for Sensitive Groups or worse on the US EPA's scale. Ties go to the higher average.
- 1Bend 20%
- 2Prineville 17%
- 3Redmond 17%
- 4Madras 3%
- 5Baker City 0%
- 6La Grande 0%
- 7Ontario 0%
- 8Medford 0%
- 9Hermiston 0%
- 10Pendleton 0%
- 10Tigard 0%
- 12Eugene 0%
- 13Altamont 0%
- 13Ashland 0%
- 15The Dalles 0%
- 16Canby 0%
- 17Talent 0%
- 18Cottage Grove 0%
- 19Milwaukie 0%
- 20Silverton 0%
- 21Hillsboro 0%
- 22Portland 0%
- 22Salem 0%
- 22Stayton 0%
- 22Sweet Home 0%
- 26Beaverton 0%
- 26Gresham 0%
- 28Green 0%
- 29Albany 0%
- 30Grants Pass 0%
- 31Florence 0%
- 31Hood River 0%
- 33North Portland 0%
- 33Woodburn 0%
- 35Corvallis 0%
- 35Dallas 0%
- 37Brookings 0%
- 37McMinnville 0%
- 39Roseburg 0%
- 40Coos Bay 0%
- 41Newport 0%
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
All cities in the world, September 2024 · All cities in United States, September 2024 · Oregon now
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SmogRank, most polluted cities in Oregon, United States, PM2.5, September 2024, smogrank.com/us/region/oregon/history/2024-09 (accessed 6 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.