Toronto 16° Montréal 15° Vancouver 7° Calgary 1° Edmonton 0° Ottawa 15° Winnipeg 2° Québec 5° Halifax 9° Victoria 6°
Canada › Ontario › Grimsby › Air Quality

Grimsby, ON Air Quality

AQHI now · Grimsby

All cities →
1.5
Low health risk

Observed Thu 7:00 AM · Hamilton Mountain

Today
2 Low risk
Tonight
2 Low risk
Tomorrow
2 Low risk
Tomorrow night
2 Low risk
Environment and Climate Change Canada · forecast issued Thu 6:00 AM

Health advice now

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

Pollutants now

PM2.53.3 µg/m³WHO guideline 15
PM103.4 µg/m³WHO guideline 45
NO₂12 µg/m³WHO guideline 25
O₃37 µg/m³WHO guideline 100
Model estimates from WeatherAPI.com; WHO 24-hour guidelines (8-hour for ozone).

Pollen today · Grimsby

TreesNonenone in the air
GrassNonenone in the air
WeedsLow<1 grains/m³ · Ragweed
Fri: weeds low · Sat: weeds low · Sun: 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
7 AM3.33.4
8 AM4.84.8
9 AM5.45.4
10 AM55.1
11 AM4.74.8
12 PM4.44.4
1 PM4.34.3
2 PM4.54.5
3 PM4.95
4 PM5.45.5
5 PM6.16.2
6 PM6.76.8