Air quality in Brossard, Quebec, Canada today
Mr. Duck’s Air Quality Score
Moderate air today for Brossard, Quebec, Canada
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Brossard today is classified as Moderate. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 concentration of 10.2 µg/m³, based on two valid observations recorded by OpenAQ.
This assessment reflects the current monitoring data without additional interpretation. This page is informational; for health guidance, use official sources such as EPA AirNow or WHO.
Latest sensor values
PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).
What the data includes
The data for Brossard includes measurements of ozone (O₃) and fine particulate matter (PM₂.5). Across the city there are two monitoring sites contributing a total of four recent observations – each pollutant is recorded at both stations. The most recent values were logged on 2026-02-10 22:00 UTC, which falls within the “updated within three days” window, so the dataset reflects current conditions.
Ozone concentrations range from a low of 0.008 ppm to a high of 0.032 ppm, with a median value of 0.020 ppm and the 10th‑90th percentile spread between 0.0104 ppm and 0.0296 ppm. PM₂.5 values span from 3.4 µg/m³ up to 10.2 µg/m³, a median of 6.8 µg/m³, and the central 80 % of readings lie between 4.08 µg/m³ and 9.52 µg/m³. Both pollutants therefore show modest variability around their typical levels, but PM₂.5 exhibits a broader absolute range than ozone.
Because only two stations supply data, spatial coverage is limited; conditions can differ in other parts of Brossard that are not directly monitored. Nonetheless, the timestamps indicate that the available measurements are recent and reflect the city’s air quality at the time they were recorded.
Learn more about sources and filtering: About the data.
Trusted references: WHO (Air pollution) · US EPA AirNow · European Environment Agency (Air)
Latest sensor values (bars)
PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).
Data notes
The data shown for Brossard reflects two valid measurements and was updated within 3 days, with the most recent reading recorded on 2026‑02‑10 at 22:00 UTC. This snapshot provides a brief view of current conditions; however, air quality can differ across neighborhoods and change throughout the day, so local variations may not be captured in these figures.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Saint-Simon | o3 | 0.008 | ppm | 2023-08-01 12:00 UTC |
| Saint-Simon | pm25 | 3.4 | µg/m³ | 2023-08-01 12:00 UTC |
| Brossard - Parc Sorb | o3 | 0.032 | ppm | 2026-02-10 22:00 UTC |
| Brossard - Parc Sorb | pm25 | 10.2 | µg/m³ | 2026-02-10 22:00 UTC |