CAMS model • Open-Meteo

MississaugaAir quality, PM2.5 and PM10

Check PM2.5 and PM10 particle levels alongside ozone, nitrogen dioxide and other gases. Compare the latest available concentrations with recent days and explore changes in air pollution through the available historical records.

Mississauga - latest available concentrations (November 10, 2026, 21:00 local time): PM2.5: 4.2 µg/m³, PM10: 4.2 µg/m³, O₃: 32 µg/m³, NO₂: 26.8 µg/m³, SO₂: 5.8 µg/m³, CO: 250 µg/m³. These are hourly CAMS model values for a point representing the city.

Air quality questions →

Mississauga · Air pollutant concentrations

Data time: November 10, 2026 · 21:00 · local time
PM2.5

Fine particles

4.2µg/m³Good · 1 hour
PM10

Particulate matter

4.2µg/m³Good · 1 hour
O₃

Ozone

32µg/m³Good · 1 hour
NO₂

Nitrogen dioxide

26.8µg/m³Moderate · 1 hour
SO₂

Sulphur dioxide

5.8µg/m³Good · 1 hour
CO

Carbon monoxide

250µg/m³

PM2.5 vs PM10 - what is the difference? → · Models and monitoring stations →

DAILY DATA · Mississauga

Mississauga - air pollution over recent days (2026-08-30 - 2026-11-09)

Concentrations of all available pollutants for this city.

PM2.5Lowest 2.8 2026-11-09Highest 27.93 2026-09-012026-08-30 - 2026-11-09
081624322026-08-30: 7.65 µg/m³08-302026-08-31: 9.41 µg/m³08-312026-09-01: 27.93 µg/m³09-012026-09-02: 12.63 µg/m³09-022026-09-03: 10.6 µg/m³09-032026-09-04: 7.91 µg/m³09-042026-09-05: 5.46 µg/m³09-052026-09-06: 7.11 µg/m³09-062026-11-03: 8.4 µg/m³11-032026-11-04: 6.78 µg/m³11-042026-11-05: 4.19 µg/m³11-052026-11-06: 4.5 µg/m³11-062026-11-07: 6.9 µg/m³11-072026-11-08: 6.56 µg/m³11-082026-11-09: 2.8 µg/m³11-09µg/m³

Scroll the chart or table sideways to see the full period.

Mississauga · daily averages · µg/m³
Pollutant2026-11-092026-11-082026-11-072026-11-062026-11-052026-11-042026-11-032026-09-062026-09-052026-09-042026-09-032026-09-022026-09-012026-08-312026-08-30
PM2.52.86.566.94.54.196.788.47.115.467.9110.612.6327.939.417.65
PM102.816.86.994.574.337.629.17.255.538.410.8512.828.369.658
O₃45.7544.3836.535.7548.7948.2147.4653.6360.1755.0862.0470.8889.4267.7562.75
NO₂13.1513.3918.2117.6815.5825.4426.3715.3113.9620.8525.2221.6729.625.0517.46
SO₂3.664.187.565.84.687.537.366.034.956.436.915.559.46.196.35
CO178.17168.5234.04210.13188.63286.29283.92219.92164.88248.96272.21239.63281.25309.17196.67

A dot on the chart and a dash in the table indicate missing data. The latest day may be incomplete.

How should I interpret the data and averaging period? →

Open-Meteo / CAMS ↗

Air quality in nearby cities

All cities →
Canada↗

Brampton

PM2.54.2
PM104.2

µg/m³

PM2.5 · Good
NO₂ 26.8O₃ 32
November 10, 202621:00
Canada↗

Toronto

PM2.54.2
PM104.2

µg/m³

PM2.5 · Good
NO₂ 26.8O₃ 32
November 10, 202621:00
Canada↗

Markham

PM2.51.7
PM101.8

µg/m³

PM2.5 · Good
NO₂ 8.2O₃ 55
November 10, 202621:00
Canada↗

Kitchener

PM2.52.6
PM102.8

µg/m³

PM2.5 · Good
NO₂ 8.6O₃ 45
November 10, 202621:00
Canada↗

Oshawa

PM2.51.4
PM101.6

µg/m³

PM2.5 · Good
NO₂ 6.1O₃ 57
November 10, 202621:00
Canada↗

Hamilton

PM2.54.6
PM104.8

µg/m³

PM2.5 · Good
NO₂ 18.9O₃ 35
November 10, 202621:00
Canada↗

Buffalo

PM2.52.8
PM103

µg/m³

PM2.5 · Good
NO₂ 13.1O₃ 50
November 10, 202621:00
Canada↗

London

PM2.54.8
PM105.2

µg/m³

PM2.5 · Good
NO₂ 16.9O₃ 37
November 10, 202621:00

Canada · air quality in other cities

TorontoMontréalVancouverCalgaryOttawaEdmontonWinnipegQuébecHamiltonBramptonKitchenerSurreyHalifaxLondonOkanaganVictoriaMarkhamBuffaloOshawa

WEATHER & SURROUNDINGS

Mississauga · weather forecast

Daily maximum and minimum temperatures. Forecast point: 43.5789, -79.6583.

🌦️ WEATHER · 16-DAY FORECASTMississauga🌧️11°RainNov 8 · ↑11° ↓5°💨 21 km/h · 💧 72%Sun8.11🌧️11°5°Mon9.11☁️9°8°Tue10.11🌧️14°6°Wed11.11🌧️10°3°Thu12.11🌧️7°3°Fri13.11☁️5°0°Sat14.11☁️6°-1°Sun15.11☁️6°2°Mon16.11☁️7°3°Tue17.11🌤️8°1°Wed18.11☀️9°2°Thu19.11🌤️10°3°Fri20.11☁️9°5°Sat21.11☁️11°5°Sun22.11☁️8°3°Mon23.11🌧️8°3°pollution-alert.com · 2026-11-08 - 2026-11-23
🌦️ WEATHER · 16-DAY FORECASTMississauga🌧️11°RainNov 8 · ↑11° ↓5°💨 21 km/h · 💧 72%Sun8.11🌧️11°5°Mon9.11☁️9°8°Tue10.11🌧️14°6°Wed11.11🌧️10°3°Thu12.11🌧️7°3°Fri13.11☁️5°0°Sat14.11☁️6°-1°Sun15.11☁️6°2°Mon16.11☁️7°3°Tue17.11🌤️8°1°Wed18.11☀️9°2°Thu19.11🌤️10°3°Fri20.11☁️9°5°Sat21.11☁️11°5°Sun22.11☁️8°3°Mon23.11🌧️8°3°pollution-alert.com · 2026-11-08 - 2026-11-23
🌦️ WEATHER · 16-DAY FORECASTMississauga🌧️11°RainNov 8 · ↑11° ↓5°💨 21 km/h · 💧 72%Sun8.11🌧️11°5°Mon9.11☁️9°8°Tue10.11🌧️14°6°Wed11.11🌧️10°3°Thu12.11🌧️7°3°Fri13.11☁️5°0°Sat14.11☁️6°-1°Sun15.11☁️6°2°Mon16.11☁️7°3°Tue17.11🌤️8°1°Wed18.11☀️9°2°Thu19.11🌤️10°3°Fri20.11☁️9°5°Sat21.11☁️11°5°Sun22.11☁️8°3°Mon23.11🌧️8°3°pollution-alert.com · 2026-11-08 - 2026-11-23

Scroll the forecast to see the following days.

Mississauga · November 8, 2026: minimum temperature 5.3°C, maximum 11°C. Wind: 21.5 km/h. Humidity: 72%.

Full forecast: temperature, rainfall, wind and humidity
DateDay °CMin °CMax °CNight °CRain mmWind m/sHumidity %Clouds %
2026-11-0810.65.31190.367299
2026-11-098.67.78.87.70.1673100
2026-11-1013.36.313.86.30.36.7578
2026-11-119.73.210.26.70.42.66699
2026-11-126.32.77.12.72.35.181100
2026-11-1340.24.60.21.147477
2026-11-146.1-1.56.12.90.53.163100
2026-11-1562.364.10.43.86289
2026-11-166.53.16.83.1—3.254100
2026-11-177.41.37.94.222.32.35530
2026-11-188.72.18.85.4—1.95076
2026-11-19102.810.16.73.13.35533
2026-11-209.15.39.18.50.73.968100
2026-11-2110.75.210.75.23.54.75294
2026-11-2282.7849.93.74589
2026-11-237.52.6880.22.85996
2026-11-248.4811.383.176770

UV index by day · Mississauga

City data.

☀️ UV INDEX · 16-DAY FORECASTMississauga03681111+2.8UV LOWNov 10 · daily maximumYou can safely stay in the sun. Sunscreen only matterson very long exposure.3Tue10.112Wed11.112Thu12.113Fri13.113Sat14.112Sun15.112Mon16.112Tue17.112Wed18.112Thu19.111Fri20.112Sat21.112Sun22.112Mon23.111Tue24.110-2 low3-5 moderate6-7 high8-10 very high11+ extremepollution-alert.com
☀️ UV INDEX · 16-DAY FORECASTMississauga03681111+2.8UV LOWNov 10 · daily maximumYou can safely stay in the sun. Sunscreen only matterson very long exposure.3Tue10.112Wed11.112Thu12.113Fri13.113Sat14.112Sun15.112Mon16.112Tue17.112Wed18.112Thu19.111Fri20.112Sat21.112Sun22.112Mon23.111Tue24.110-2 low3-5 moderate6-7 high8-10 very high11+ extremepollution-alert.com

You can safely stay in the sun. Sunscreen only matters on very long exposure.

☀️ UV INDEX · 16-DAY FORECASTMississauga03681111+2.8UV LOWNov 10 · daily maximumYou can safely stay in the sun. Sunscreen only matterson very long exposure.3Tue10.112Wed11.112Thu12.113Fri13.113Sat14.112Sun15.112Mon16.112Tue17.112Wed18.112Thu19.111Fri20.112Sat21.112Sun22.112Mon23.111Tue24.110-2 low3-5 moderate6-7 high8-10 very high11+ extremepollution-alert.com
0-2 low3-5 moderate6-7 high8-10 very high11+ extreme

Scroll the forecast to see the following days.

Mississauga · November 10, 2026: UV index: 2.8 .

Indicator2026-11-102026-11-112026-11-122026-11-132026-11-142026-11-152026-11-162026-11-172026-11-182026-11-192026-11-202026-11-212026-11-222026-11-232026-11-242026-11-25
UV index2.81.91.62.72.61.81.72.42.42.20.71.92.121.3—

Open-Meteo ↗

AIR QUALITY QUESTIONS

Mississauga · air pollution - questions and answers

What do the latest air quality data show for Mississauga?

Mississauga - latest available concentrations (November 10, 2026, 21:00 local time): PM2.5: 4.2 µg/m³, PM10: 4.2 µg/m³, O₃: 32 µg/m³, NO₂: 26.8 µg/m³, SO₂: 5.8 µg/m³, CO: 250 µg/m³. These are hourly CAMS model values for a point representing the city.

When was PM2.5 highest in Mississauga over the past week?

The highest available daily mean PM2.5 was 8.4 µg/m³ (November 3, 2026). This comparison covers 7 days with data in the seven days before November 10, 2026. The day of the latest reading is excluded because it may be incomplete.

Is the PM2.5 concentration for Mississauga an AQI score?

No. PM2.5 and PM10 are concentrations in µg/m³. AQI is a separate index calculated using a defined scale. When comparing air quality, also check other pollutants, the date and the averaging period.

What UV index does the available forecast show for Mississauga?

For November 10, 2026, the forecast UV index is 2.8. The UV section also shows the following available days.

What wind speed is forecast for Mississauga?

For November 8, 2026, forecast wind speed is 21.5 km/h. The weather table includes wind, temperature and other available parameters for subsequent days.

PM2.5 · PM10 · NO₂ · O₃

Understanding air quality and pollution data

What do PM2.5 and PM10 mean?

PM2.5 and PM10 are fractions of airborne particulate matter. PM2.5 covers fine particles up to 2.5 micrometres in diameter, while PM10 covers particles up to 10 micrometres. Concentrations in µg/m³ tell you how many micrograms of particles are present in a cubic metre of air. Compare values over the same time period.

Where does the air pollution data come from?

The latest concentrations come from the CAMS atmospheric model via Open-Meteo for each city’s coordinates. Values describe a model area, so conditions on individual streets may differ. Historical monitoring station data is shown separately where available.

How does PM2.5 concentration differ from AQI?

PM2.5 is the concentration of one particle fraction, expressed in µg/m³. AQI is an index calculated using a particular scale and thresholds. The pollutant cards show concentrations. Our city ranking compares PM2.5; PM10, ozone, nitrogen dioxide and other available gases add to the picture of air quality.

Which dates do the values and charts cover?

Each current value has a data date and time. Current concentration cards show the latest available hour, daily charts summarise individual days, and monthly records let you compare longer periods. These values represent different time intervals.

How can I check pollution in my city?

Search for your city and open its air quality page. Start with PM2.5 and PM10, then check the other available pollutants and the data timestamp. Charts and tables help you compare concentrations over time. Weather and historical climate information complement the pollution data.