Worst air pollution Coquitlam, today and tomorrow
Today (15 July): Air quality in Coquitlam is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 AM (O3: 36.0/100).
Tomorrow (16 July 2026): Air quality in Coquitlam is medium. AQI improves to medium; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 6:00 AM (O3: 51.1/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Coquitlam's air quality benefits from its position at the base of the Coast Mountains, with Lougheed Highway traffic a local source, while forested slopes and the Pitt River valley provide natural ventilation.
Today - 15 July | Pollution peaks at 09:00
AQI:
Fair
36.0/100
PM2.5 (fine particles):
Good
5.7/100
PM10 (coarse particles):
Good
2.0/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
36.0/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
4.1/100
PM1 (ultrafine particles):
Good
5.2/100
Levels show the poorest local air quality during the day
Tomorrow - 16 July | Pollution peaks at 06:00
AQI:
Medium
51.1/100
PM2.5 (fine particles):
Good
6.0/100
PM10 (coarse particles):
Good
2.1/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Medium
51.1/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
5.9/100
PM1 (ultrafine particles):
Good
6.0/100
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Frequently Asked Questions
Is air quality bad in Coquitlam right now?
On 15 July 2026, overall air quality in Coquitlam is fair. AQI is the main air quality indicator at 36.0/100. Pollution peaks around 9:00 AM (O3: 36.0/100).
Will air quality be worse tomorrow in Coquitlam?
On 16 July 2026, air quality conditions in Coquitlam will be better than today, with AQI forecast at medium at 51.1/100. Pollution peaks around 6:00 AM (O3: 51.1/100).
When is air pollution at its worst in Coquitlam?
Coquitlam sees clear seasonal swings in air quality, driven in part by its position where the Fraser Valley meets the Coast Mountains. Winter rain keeps the air generally clean, while hot, still summer days can trap traffic emissions and wildfire smoke against the surrounding mountains. Its position within the Fraser Valley air basin means smog can linger longer than on the open coast.
Are air quality levels in Coquitlam 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.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 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.
For long term forecasts and maps, see the Airmine app