Worst air pollution Old Capitol Museum - Iowa City, today and tomorrow
Today (16 July): Air quality in Old Capitol Museum is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 AM (O3: 36.7/100).
Tomorrow (17 July 2026): Air quality in Old Capitol Museum is fair. All pollutants stay as today. Pollution peaks around 12:00 PM (O3: 37.6/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Given its location — a restored historic capitol building on the University of Iowa campus — Old Capitol Museum shares Iowa City's wider air quality pattern rather than a distinct local one. Any local variation tends to be minor compared with the seasonal swings seen across the wider city.
Today - 16 July | Pollution peaks at 11:00
AQI:
Fair
36.7/100
PM2.5 (fine particles):
Good
12.6/100
PM10 (coarse particles):
Good
13.0/100
NO2 (nitrogen dioxide):
Fair
26.4/100
O3 (ozone):
Fair
36.7/100
SO2 (sulfur dioxide):
Good
3.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.5/100
PM1 (ultrafine particles):
Good
8.5/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 12:00
AQI:
Fair
37.6/100
PM2.5 (fine particles):
Good
8.1/100
PM10 (coarse particles):
Good
3.3/100
NO2 (nitrogen dioxide):
Fair
31.8/100
O3 (ozone):
Fair
37.6/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.2/100
PM1 (ultrafine particles):
Good
6.7/100
Other Landmarks in Iowa City
Frequently Asked Questions
Is air quality bad in Old Capitol Museum right now?
On 16 July 2026, overall air quality in Old Capitol Museum is fair. AQI is the main air quality indicator at 36.7/100. Pollution peaks around 11:00 AM (O3: 36.7/100).
Will air quality be worse tomorrow in Old Capitol Museum?
On 17 July 2026, air quality conditions in Old Capitol Museum will be similar to today, with AQI forecast at fair at 37.6/100. Pollution peaks around 12:00 PM (O3: 37.6/100).
When is air pollution at its worst in Old Capitol Museum?
Air quality at Old Capitol Museum shifts across the year — the cleanest conditions usually come in winter, once the growing season dust and pollen have passed, whereas both spring planting and autumn harvest bring short bursts of elevated dust and smoke. Wide-open terrain generally helps disperse pollution quickly once the wind picks up.
Are air quality levels in Old Capitol Museum 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.
Want to see air quality forecasts for other cities in United States?
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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