What is the air quality in Coquitlam?

Coquitlam, Canada has an annual US AQI of 31 (Reasonable) and average PM2.5 of 5.2 µg/m³, ranking #61 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Coquitlam?

January is typically the cleanest month (AQI 27) and August the most polluted (AQI 40).

Where does Coquitlam's air quality data come from?

PM2.5: 1998–2026 (monitors 1999–2026, satellite 1998, 2007, 2013, 2024; 2025–2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Coquitlam, Canada — Air Quality & Clean City Guide 2026

Coquitlam Air Quality Data

Global rank	City	Continent	AQI	PM2.5
61	Coquitlam, Canada	North America	AQI 31	PM2.5 5.2 µg/m³