Worst air pollution Grundy, today and tomorrow
Today (9 August): Air quality in Grundy is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 AM (O3: 28.9/100).
Tomorrow (10 August 2026): Air quality in Grundy is fair. All pollutants stay as today. Pollution peaks around 10:00 AM (O3: 35.5/100). 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.
Grundy experiences air quality conditions shaped chiefly by clean Appalachian mountain air, and the enclosed valley can trap haze on still summer days. These factors combine to give Grundy a fairly typical seasonal air quality pattern for this part of the country. None of this replaces checking the current forecast before heading outdoors in Grundy.
Today - 9 August | Pollution peaks at 00:00
AQI:
Fair
28.9/100
PM2.5 (fine particles):
Good
12.8/100
PM10 (coarse particles):
Good
5.1/100
NO2 (nitrogen dioxide):
Good
3.0/100
O3 (ozone):
Fair
28.9/100
SO2 (sulfur dioxide):
Good
1.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.7/100
PM1 (ultrafine particles):
Good
8.7/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 10:00
AQI:
Fair
35.5/100
PM2.5 (fine particles):
Good
14.3/100
PM10 (coarse particles):
Good
5.7/100
NO2 (nitrogen dioxide):
Good
3.0/100
O3 (ozone):
Fair
35.5/100
SO2 (sulfur dioxide):
Good
2.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.1/100
PM1 (ultrafine particles):
Good
9.6/100
Pollen forecast in Grundy
View pollen forecastFrequently Asked Questions
Is air quality bad in Grundy right now?
On 9 August 2026, overall air quality in Grundy is fair. AQI is the main air quality indicator at 28.9/100. Pollution peaks around 12:00 AM (O3: 28.9/100).
Will air quality be worse tomorrow in Grundy?
On 10 August 2026, air quality conditions in Grundy will be similar to today, with AQI forecast at fair at 35.5/100. Pollution peaks around 10:00 AM (O3: 35.5/100).
When is air pollution at its worst in Grundy?
Like most US cities, Grundy sees air quality shift from season to season, as late autumn, once summer haze has cleared, tends to offer some of the freshest conditions; by contrast, summer heat waves bring the highest ozone risk, compounded by pollution drifting in from the wider region. Suburban and rural areas generally see less of the persistent traffic-driven pollution that affects the urban core.
Are air quality levels in Grundy 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: 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.
Get the full experience in the Airmine app.