Worst air pollution Blezard Valley - Greater Sudbury, today and tomorrow
Today (30 August): Air quality in Blezard Valley is moderate. AQI and NO2 are moderate; PM2.5 and O3 are fair; PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 1:00 AM (NO2: 43.7/100).
Tomorrow (31 August 2026): Air quality in Blezard Valley is poor. AQI worsens to poor; NO2 increases to poor; O3 decreases to good; SO2 increases to fair; all other pollutants stay as today. Pollution peaks around 11:00 PM (NO2: 78.3/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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In Blezard Valley, light local traffic means surrounding farmland activity, not congestion, is the bigger day-to-day influence on air quality. This is partly offset by nearby tree cover, which filters out some particulate matter naturally. This general baseline tends to hold across nearby areas with similar traffic and land use.
Today - 30 August | Pollution peaks at 01:00
AQI:
Moderate
43.7/100
PM2.5 (fine particles):
Fair
27.4/100
PM10 (coarse particles):
Good
11.9/100
NO2 (nitrogen dioxide):
Moderate
43.7/100
O3 (ozone):
Fair
23.4/100
SO2 (sulfur dioxide):
Good
14.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.6/100
PM1 (ultrafine particles):
Good
15.1/100
Levels show the poorest local air quality during the day
Tomorrow - 31 August | Pollution peaks at 23:00
AQI:
Poor
78.3/100
PM2.5 (fine particles):
Fair
23.6/100
PM10 (coarse particles):
Good
10.0/100
NO2 (nitrogen dioxide):
Poor
78.3/100
O3 (ozone):
Good
19.7/100
SO2 (sulfur dioxide):
Fair
21.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.5/100
PM1 (ultrafine particles):
Good
12.9/100
Other Landmarks in Greater Sudbury
Sports venues in Greater Sudbury
Frequently Asked Questions
Is air quality bad in Blezard Valley right now?
On 30 August 2026, overall air quality in Blezard Valley is moderate. AQI is the main air quality indicator at 43.7/100. Pollution peaks around 1:00 AM (NO2: 43.7/100).
Will air quality be worse tomorrow in Blezard Valley?
On 31 August 2026, air quality conditions in Blezard Valley will be worse than today, with AQI forecast at poor at 78.3/100. Pollution peaks around 11:00 PM (NO2: 78.3/100).
When is air pollution at its worst in Blezard Valley?
The colder months typically bring the heaviest particulate levels of the year, as wood and furnace heating combine with still, cold air that traps smoke close to the ground. Warmer months bring a different problem: ground-level ozone, with strong sun and heat driving ozone formation, at times worsened by wildfire smoke from farther afield.
Are air quality levels in Blezard Valley 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: 30 August 2026 at 20:26 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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