Worst air pollution Central Business District - Peoria, today and tomorrow
Today (9 August): Air quality in Central Business District is fair. PM2.5, O3, and PM1 are fair; AQI and NO2 are medium; PM10, SO2, CO, and HCHO are good. Pollution peaks around 11:00 PM (NO2: 40.9/100).
Tomorrow (10 August 2026): Air quality in Central Business District is fair. All pollutants stay as today. Pollution peaks around 12:00 AM (NO2: 41.7/100). Airmine updates local air quality forecasts four times daily.
Get the full experience in the Airmine app.
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.
In Central Business District, with lighter traffic here, particulate matter tends to come more from farmland dust and occasional burning than from vehicles. Some of this load is absorbed by vegetation roughly 83m off, acting as a modest natural filter. The surrounding area tends to follow a similar pattern, with only minor local variation.
Today - 9 August | Pollution peaks at 23:00
AQI:
Medium
40.9/100
PM2.5 (fine particles):
Fair
24.7/100
PM10 (coarse particles):
Good
7.2/100
NO2 (nitrogen dioxide):
Medium
40.9/100
O3 (ozone):
Fair
38.1/100
SO2 (sulfur dioxide):
Good
4.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.9/100
PM1 (ultrafine particles):
Fair
30.0/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 00:00
AQI:
Medium
41.7/100
PM2.5 (fine particles):
Fair
31.7/100
PM10 (coarse particles):
Good
11.0/100
NO2 (nitrogen dioxide):
Medium
41.7/100
O3 (ozone):
Fair
36.1/100
SO2 (sulfur dioxide):
Good
4.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.6/100
PM1 (ultrafine particles):
Fair
36.4/100
Other Landmarks in Peoria
Frequently Asked Questions
Is air quality bad in Central Business District right now?
On 9 August 2026, overall air quality in Central Business District is fair. O3 is the main pollutant at 38.1/100. Pollution peaks around 11:00 PM (NO2: 40.9/100).
Will air quality be worse tomorrow in Central Business District?
On 10 August 2026, air quality conditions in Central Business District will be similar to today, with PM1 forecast at fair at 36.4/100. Pollution peaks around 12:00 AM (NO2: 41.7/100).
When is air pollution at its worst in Central Business District?
The colder months typically bring the heaviest particulate levels of the year, driven by heating season smoke that lingers under stagnant, cold winter air. Warmer months bring a different problem: ground-level ozone, as heat and sunlight drive photochemical smog, occasionally worsened by drifting wildfire smoke. Spring and fall tend to bring the cleanest air of the year, aided by milder temperatures and more consistent wind.
Are air quality levels in Central Business 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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
Want to see air quality forecasts for other cities in United States?
Check air quality in other popular cities:
Data provided by Airmine — Last update: 10 August 2026 at 02:34 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
Get the full experience in the Airmine app.