Worst air pollution Oregon Museum of Science and Industry - Portland, today and tomorrow
Today (15 July): Air quality in Oregon Museum of Science and Industry is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (O3: 41.5/100).
Tomorrow (16 July 2026): Air quality in Oregon Museum of Science and Industry is fair. AQI worsens to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 4:00 AM (O3: 36.7/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Portland's Oregon Museum of Science and Industry air quality reflects the Willamette River east bank position, with vehicle traffic on the surrounding SE Water Avenue corridor contributing local sources. The Willamette River provides limited ventilation, while summer wildfire smoke is the primary seasonal concern and the museum generally maintains moderate Portland metropolitan readings during non-wildfire periods throughout most of the year.
Today - 15 July | Pollution peaks at 07:00
AQI:
Medium
41.5/100
PM2.5 (fine particles):
Good
6.8/100
PM10 (coarse particles):
Good
3.5/100
NO2 (nitrogen dioxide):
Good
19.2/100
O3 (ozone):
Medium
41.5/100
SO2 (sulfur dioxide):
Good
1.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.5/100
PM1 (ultrafine particles):
Good
5.6/100
Levels show the poorest local air quality during the day
Tomorrow - 16 July | Pollution peaks at 04:00
AQI:
Fair
36.7/100
PM2.5 (fine particles):
Good
6.3/100
PM10 (coarse particles):
Good
2.4/100
NO2 (nitrogen dioxide):
Good
9.0/100
O3 (ozone):
Fair
36.7/100
SO2 (sulfur dioxide):
Good
1.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.0/100
PM1 (ultrafine particles):
Good
5.9/100
Other Landmarks in Portland
Frequently Asked Questions
Is air quality bad in Oregon Museum of Science and Industry right now?
On 15 July 2026, overall air quality in Oregon Museum of Science and Industry is medium. AQI is the main air quality indicator at 41.5/100. Pollution peaks around 7:00 AM (O3: 41.5/100).
Will air quality be worse tomorrow in Oregon Museum of Science and Industry?
On 16 July 2026, air quality conditions in Oregon Museum of Science and Industry will be worse than today, with AQI forecast at fair at 36.7/100. Pollution peaks around 4:00 AM (O3: 36.7/100).
When is air pollution at its worst in Oregon Museum of Science and Industry?
Air quality at Oregon Museum of Science and Industry shifts across the year — rain-heavy winters keep the air unusually clean compared to much of the country, whereas August and September wildfire smoke can dominate the season, occasionally driving particulate levels sharply higher for several days. Winter temperature inversions can briefly trap wood-smoke in low-lying valleys, but these episodes are usually short-lived.
Are air quality levels in Oregon Museum of Science and Industry based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app