Portland Air Quality Remains Good with Low Pollution Levels
As of Monday, August 10, 2026, at 1:00 AM local time, Portland, Oregon, is experiencing good air quality conditions. The PM2.5 Air Quality Index (AQI) is reported at 15, indicating minimal particulate matter in the air. Other pollutants, such as ozone (O3) and carbon monoxide (CO), are at negligible levels, with AQI values of 0. Nitrogen dioxide (NO2) is also low, with an AQI of 2. Weather conditions include a pressure range of 1014–1020 hPa, humidity levels between 27% and 86%, and wind speeds varying from 0 to 6 km/h. These measurements are provided by the Oregon Department of Environmental Quality (DEQ) and the US EPA's Air Now program.
