Worst air pollution Marywood Meadows - Halton Hills, today and tomorrow
Today (25 August): Air quality in Marywood Meadows is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 AM (O3: 25.6/100).
Tomorrow (26 August 2026): Air quality in Marywood Meadows is fair. All pollutants stay as today. Pollution peaks around 10:00 AM (O3: 33.8/100). Airmine updates local air quality forecasts four times daily.
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In Marywood Meadows, modest traffic volumes mean local air quality leans more on farmland dust and seasonal burning than on vehicle emissions. Green space nearby provides modest natural relief, filtering a portion of this particulate load. Nearby areas with a similar setup tend to show a comparable air quality baseline.
Today - 25 August | Pollution peaks at 11:00
AQI:
Fair
25.6/100
PM2.5 (fine particles):
Good
4.4/100
PM10 (coarse particles):
Good
1.5/100
NO2 (nitrogen dioxide):
Good
18.7/100
O3 (ozone):
Fair
25.6/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.4/100
PM1 (ultrafine particles):
Good
4.3/100
Levels show the poorest local air quality during the day
Tomorrow - 26 August | Pollution peaks at 10:00
AQI:
Fair
33.8/100
PM2.5 (fine particles):
Good
6.9/100
PM10 (coarse particles):
Good
3.7/100
NO2 (nitrogen dioxide):
Good
19.2/100
O3 (ozone):
Fair
33.8/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.4/100
PM1 (ultrafine particles):
Good
5.2/100
Other Landmarks in Halton Hills
Sports venues in Halton Hills
Frequently Asked Questions
Is air quality bad in Marywood Meadows right now?
On 25 August 2026, overall air quality in Marywood Meadows is fair. AQI is the main air quality indicator at 25.6/100. Pollution peaks around 11:00 AM (O3: 25.6/100).
Will air quality be worse tomorrow in Marywood Meadows?
On 26 August 2026, air quality conditions in Marywood Meadows will be similar to today, with AQI forecast at fair at 33.8/100. Pollution peaks around 10:00 AM (O3: 33.8/100).
When is air pollution at its worst in Marywood Meadows?
Cold-season conditions typically drive the sharpest particulate increases around here, driven by the combination of home heating and calm winter air that resists mixing. By summer, ozone becomes the more pressing issue in this area, since intense sun and heat fuel ozone formation, sometimes compounded by regional wildfire smoke. Milder spring and fall weather, paired with more reliable wind, usually gives the clearest air of the year.
Are air quality levels in Marywood Meadows 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: 25 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.
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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