Worst air pollution Downtown Pekin - Pekin, today and tomorrow
Today (9 August): Air quality in Downtown Pekin 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: 44.1/100).
Tomorrow (10 August 2026): Air quality in Downtown Pekin is fair. PM1 decreases to medium; all other pollutants stay as today. Pollution peaks around 11:00 PM (NO2: 48.8/100). 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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Air quality at Downtown Pekin, the city's small riverside downtown along the Illinois River, generally follows the pattern seen across Pekin, shaped by the same local and regional factors. Checking conditions closer to visit time is still the best way to plan around this specific site.
Today - 9 August | Pollution peaks at 23:00
AQI:
Medium
44.1/100
PM2.5 (fine particles):
Fair
26.5/100
PM10 (coarse particles):
Good
7.7/100
NO2 (nitrogen dioxide):
Medium
44.1/100
O3 (ozone):
Fair
34.2/100
SO2 (sulfur dioxide):
Good
6.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.7/100
PM1 (ultrafine particles):
Fair
31.9/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 23:00
AQI:
Medium
48.8/100
PM2.5 (fine particles):
Fair
35.1/100
PM10 (coarse particles):
Good
11.0/100
NO2 (nitrogen dioxide):
Medium
48.8/100
O3 (ozone):
Fair
35.6/100
SO2 (sulfur dioxide):
Good
5.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.0/100
PM1 (ultrafine particles):
Medium
40.3/100
Other Landmarks in Pekin
Frequently Asked Questions
Is air quality bad in Downtown Pekin right now?
On 9 August 2026, overall air quality in Downtown Pekin is fair. O3 is the main pollutant at 34.2/100. Pollution peaks around 11:00 PM (NO2: 44.1/100).
Will air quality be worse tomorrow in Downtown Pekin?
On 10 August 2026, air quality conditions in Downtown Pekin will be similar to today, with O3 forecast at fair at 35.6/100. Pollution peaks around 11:00 PM (NO2: 48.8/100).
When is air pollution at its worst in Downtown Pekin?
This neighborhood in Pekin sees air quality shift through the year — spring and autumn tend to bring the cleanest, most stable air, whereas summer heat waves are the main driver of poor air quality, as ozone builds under stagnant, humid conditions. Lake-effect winds can help clear the air on many days near the Great Lakes shoreline.
Are air quality levels in Downtown Pekin 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.
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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.
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