Worst air pollution Henderson Park - West Allis, today and tomorrow
Today (2 September): Air quality in Henderson Park is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 AM (O3: 28.9/100).
Tomorrow (3 September 2026): Air quality in Henderson Park is fair. All pollutants stay as today. Pollution peaks around 10:00 AM (O3: 31.4/100). Airmine updates local air quality forecasts four times daily.
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In Henderson Park, with fewer vehicles on the road, nearby cropland dust and periodic burning outweigh traffic as a pollution source. Trees and green space nearby provide a partial buffer, catching particulate matter before it spreads further. Local monitoring for the wider area tends to track closely with this general pattern.
Today - 2 September | Pollution peaks at 10:00
AQI:
Fair
28.9/100
PM2.5 (fine particles):
Good
5.1/100
PM10 (coarse particles):
Good
1.9/100
NO2 (nitrogen dioxide):
Good
2.8/100
O3 (ozone):
Fair
28.9/100
SO2 (sulfur dioxide):
Good
0.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.3/100
PM1 (ultrafine particles):
Good
4.2/100
Levels show the poorest local air quality during the day
Tomorrow - 3 September | Pollution peaks at 10:00
AQI:
Fair
31.4/100
PM2.5 (fine particles):
Good
4.8/100
PM10 (coarse particles):
Good
1.6/100
NO2 (nitrogen dioxide):
Good
2.7/100
O3 (ozone):
Fair
31.4/100
SO2 (sulfur dioxide):
Good
0.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.0/100
PM1 (ultrafine particles):
Good
4.4/100
Other Landmarks in West Allis
Sports venues in West Allis
Frequently Asked Questions
Is air quality bad in Henderson Park right now?
On 2 September 2026, overall air quality in Henderson Park is fair. AQI is the main air quality indicator at 28.9/100. Pollution peaks around 10:00 AM (O3: 28.9/100).
Will air quality be worse tomorrow in Henderson Park?
On 3 September 2026, air quality conditions in Henderson Park will be similar to today, with AQI forecast at fair at 31.4/100. Pollution peaks around 10:00 AM (O3: 31.4/100).
When is air pollution at its worst in Henderson Park?
The colder months typically bring the heaviest particulate levels of the year, when winter inversions trap local heating smoke in place for days at a time. Warmer months bring a different problem: ground-level ozone, as hot, sunny days accelerate local ozone formation, occasionally compounded by drifting smoke. The best stretches for air quality tend to fall in spring and autumn, when wind and mild weather aid dispersal.
Are air quality levels in Henderson Park 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: 2 September 2026 at 20:31 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.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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