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Canada › Ontario › Cornwall › Air Quality

Cornwall, ON Air Quality

AQHI now · Cornwall

All cities →
1
Low health risk

Observed Sat 12:00 AM · Cornwall

Friday night
2 Low risk
Today
2 Low risk
Tonight
2 Low risk
Environment and Climate Change Canada · forecast issued Fri 5:00 PM

Health advice now

People at risk
Enjoy your usual outdoor activities.
Everyone else
Ideal air quality for outdoor activities.

Pollutants now

PM2.51.3 µg/m³WHO guideline 15
PM101.3 µg/m³WHO guideline 45
NO₂10 µg/m³WHO guideline 25
O₃38 µg/m³WHO guideline 100
Model estimates from WeatherAPI.com; WHO 24-hour guidelines (8-hour for ozone).

Pollen today · Cornwall

TreesNonenone in the air
GrassNonenone in the air
WeedsLow<1 grains/m³ · Ragweed
Sun: weeds low · Mon: weeds low · Tue: weeds low
Model estimate from WeatherAPI.com — pollen grains per m³ of air; levels on the National Allergy Bureau scale.

Particles · next 12 hours

µg/m³
TimePM2.5PM10
12 AM1.31.3
1 AM11
2 AM0.90.9
3 AM0.80.8
4 AM0.80.8
5 AM0.90.9
6 AM1.11.1
7 AM1.31.3
8 AM1.41.4
9 AM1.41.4
10 AM1.41.5
11 AM1.41.5