Worst air pollution Falls Park - Sioux Falls, today and tomorrow
Today (9 August): Air quality in Falls Park is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 AM (O3: 36.8/100).
Tomorrow (10 August 2026): Air quality in Falls Park is fair. All pollutants stay as today. Pollution peaks around 11:00 AM (O3: 31.8/100). Airmine updates local air quality forecasts four times daily.
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As a park built around the city's namesake waterfalls on the Big Sioux River, Falls Park experiences air quality conditions similar to the rest of Sioux Falls, following the same broader regional pattern. Any local variation tends to be minor compared with the seasonal swings seen across the wider city.
Today - 9 August | Pollution peaks at 08:00
AQI:
Fair
36.8/100
PM2.5 (fine particles):
Good
10.4/100
PM10 (coarse particles):
Good
4.6/100
NO2 (nitrogen dioxide):
Fair
25.7/100
O3 (ozone):
Fair
36.8/100
SO2 (sulfur dioxide):
Good
2.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.7/100
PM1 (ultrafine particles):
Good
8.3/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 11:00
AQI:
Fair
31.8/100
PM2.5 (fine particles):
Good
10.2/100
PM10 (coarse particles):
Good
5.6/100
NO2 (nitrogen dioxide):
Fair
26.2/100
O3 (ozone):
Fair
31.8/100
SO2 (sulfur dioxide):
Good
2.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.4/100
PM1 (ultrafine particles):
Good
7.1/100
Other Landmarks in Sioux Falls
Frequently Asked Questions
Is air quality bad in Falls Park right now?
On 9 August 2026, overall air quality in Falls Park is fair. AQI is the main air quality indicator at 36.8/100. Pollution peaks around 8:00 AM (O3: 36.8/100).
Will air quality be worse tomorrow in Falls Park?
On 10 August 2026, air quality conditions in Falls Park will be similar to today, with AQI forecast at fair at 31.8/100. Pollution peaks around 11:00 AM (O3: 31.8/100).
When is air pollution at its worst in Falls Park?
Falls Park follows Sioux Falls's typical seasonal air quality pattern. In short, winter generally brings the cleanest air, aside from brief inversion episodes during calm cold spells, 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 Falls 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: 9 August 2026 at 20:27 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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