Highest air pollution Grand Center Arts District - St. Louis, today and tomorrow
Today (29 June): Air quality in Grand Center Arts District is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (O3: 35.7/100).
Tomorrow (30 June 2026): Air quality in Grand Center Arts District is fair. All pollutants stay as today. Pollution peaks around 7:00 AM (O3: 38.0/100). 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
St. Louis' Grand Center Arts District air quality reflects the cultural corridor adjacent to Fox Theatre and Powell Symphony Hall, with vehicle traffic on Grand Boulevard and the surrounding arts and residential character contributing local sources. The flat terrain allows reasonable dispersal, while the neighbourhood's arts character and the surrounding residential density maintain moderate St. Louis metropolitan readings throughout most of the year.
Today - 29 June | Pollution peaks at 07:00
AQI:
Fair
35.7/100
PM2.5 (fine particles):
Good
9.7/100
PM10 (coarse particles):
Good
4.0/100
NO2 (nitrogen dioxide):
Good
4.6/100
O3 (ozone):
Fair
35.7/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.8/100
PM1 (ultrafine particles):
Good
7.2/100
Levels show the poorest local air quality during the day
Tomorrow - 30 June | Pollution peaks at 07:00
AQI:
Fair
38.0/100
PM2.5 (fine particles):
Good
9.5/100
PM10 (coarse particles):
Good
3.9/100
NO2 (nitrogen dioxide):
Good
5.6/100
O3 (ozone):
Fair
38.0/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.9/100
PM1 (ultrafine particles):
Good
7.3/100
Other Landmarks in St. Louis
Frequently Asked Questions
Is air quality bad in Grand Center Arts District right now?
On 29 June 2026, overall air quality in Grand Center Arts District is fair. AQI is the main air quality indicator at 35.7/100. Pollution peaks around 7:00 AM (O3: 35.7/100).
Will air quality be worse tomorrow in Grand Center Arts District?
On 30 June 2026, air quality conditions in Grand Center Arts District will be similar to today, with AQI forecast at fair at 38.0/100. Pollution peaks around 7:00 AM (O3: 38.0/100).
Are air quality levels in Grand Center Arts District 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: 29 June 2026 at 18:38 CET (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
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team