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Canada › Ontario › Cornwall › Air Quality

Cornwall, ON Air Quality

AQHI now · Cornwall

All cities →
1.3
Low health risk

Observed Fri 11:00 PM · Cornwall

Tonight
2 Low risk
Tomorrow
2 Low risk
Tomorrow night
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

PM2.52.2 µg/m³WHO guideline 15
PM102.3 µg/m³WHO guideline 45
NO₂17 µg/m³WHO guideline 25
O₃30 µg/m³WHO guideline 100
Model estimates from WeatherAPI.com; WHO 24-hour guidelines (8-hour for ozone).

Pollen today · Cornwall

TreesNonenone in the air
GrassLow<1 grains/m³
WeedsLow<1 grains/m³ · Ragweed
Sat: weeds low · Sun: weeds low · Mon: 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
11 PM2.22.3
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