Worst air pollution Hawthorne Meadows - Ottawa, today and tomorrow
Today (24 August): Air quality in Hawthorne 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: 28.4/100).
Tomorrow (25 August 2026): Air quality in Hawthorne Meadows is fair. All pollutants stay as today. Pollution peaks around 8:00 AM (O3: 25.2/100). Airmine updates local air quality forecasts four times daily.
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In Hawthorne Meadows, persistent traffic congestion paired with dense urban land use keeps particulate and nitrogen dioxide levels elevated here. Nearby tree cover helps filter some of this particulate load before it settles over the neighborhood. Local monitoring for the wider area tends to track closely with this general pattern.
Today - 24 August | Pollution peaks at 11:00
AQI:
Fair
28.4/100
PM2.5 (fine particles):
Good
3.4/100
PM10 (coarse particles):
Good
1.3/100
NO2 (nitrogen dioxide):
Good
0.7/100
O3 (ozone):
Fair
28.4/100
SO2 (sulfur dioxide):
Good
0.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.6/100
PM1 (ultrafine particles):
Good
2.8/100
Levels show the poorest local air quality during the day
Tomorrow - 25 August | Pollution peaks at 08:00
AQI:
Fair
25.2/100
PM2.5 (fine particles):
Good
3.8/100
PM10 (coarse particles):
Good
1.4/100
NO2 (nitrogen dioxide):
Good
1.5/100
O3 (ozone):
Fair
25.2/100
SO2 (sulfur dioxide):
Good
0.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.2/100
PM1 (ultrafine particles):
Good
3.0/100
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Frequently Asked Questions
Is air quality bad in Hawthorne Meadows right now?
On 24 August 2026, overall air quality in Hawthorne Meadows is fair. AQI is the main air quality indicator at 28.4/100. Pollution peaks around 11:00 AM (O3: 28.4/100).
Will air quality be worse tomorrow in Hawthorne Meadows?
On 25 August 2026, air quality conditions in Hawthorne Meadows will be similar to today, with AQI forecast at fair at 25.2/100. Pollution peaks around 8:00 AM (O3: 25.2/100).
When is air pollution at its worst in Hawthorne Meadows?
Winter tends to bring the year's worst particulate spikes here, driven by the combination of winter heating demand and dense traffic under calm, cold conditions. Summer shifts the concern toward ground-level ozone across the city, as intense summer sunlight bakes traffic emissions into ground-level ozone across the urban core. The transitional months of spring and fall typically see the year's lowest particulate and ozone levels.
Are air quality levels in Hawthorne 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 02:28 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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