Air quality in Dorval, Quebec, Canada today
Mr. Duck’s Air Quality Score
Moderate air today for Dorval, 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 Dorval today is classified as Moderate. The primary pollutant identified is PM2.5 (fine particles), with a measured concentration of 10.9 µg/m³. Data are based on three valid measurements collected through OpenAQ.
Overall, the conditions reflect a moderate level of particulate matter without additional pollutants reported. 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 Dorval air‑quality record consists of a single monitoring location – the Montréal Airport sensor – which supplies data for four pollutants: carbon monoxide (CO), nitrogen dioxide (NO₂), ozone (O₃) and fine particulate matter (PM2.5). Because there is only one row in the dataset, coverage across the city is limited to this site.
The most recent measurements are fairly fresh for three of the gases, with NO₂, O₃ and PM2.5 all last updated on 2026‑02‑10 at 22:00 UTC, meaning they were recorded within the past three days. CO data are older, with its latest entry dated 2023‑02‑02 at 01:00 UTC, so that value reflects conditions from more than three years ago.
All four pollutants show a single reported value, which also serves as their minimum, median and maximum because no variation was captured in the available rows. CO is recorded at 0.5 ppm, NO₂ at 0.0241 ppm, O₃ at 0.017 ppm and PM2.5 at 10.9 µg/m³. The lack of a spread (the 10th‑percentile and 90th‑percentile are identical to the median) indicates that the dataset does not contain multiple observations over time for these parameters.
In summary, Dorval’s public air‑quality page draws on one monitoring station, providing up‑to‑date readings for NO₂, O₃ and PM2.5 but only an outdated CO value. The uniformity of reported numbers means the data capture a single snapshot rather than a range of conditions, so actual city‑wide air quality may differ across neighborhoods and times not represented here.
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 Dorval reflects three valid measurements and was updated within 3 days, with the latest 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 values may not represent every location or moment in the city.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| A�roport de Montr�al | co | 0.5 | ppm | 2023-02-02 01:00 UTC |
| A�roport de Montr�al | no2 | 0.0241 | ppm | 2026-02-10 22:00 UTC |
| A�roport de Montr�al | o3 | 0.017 | ppm | 2026-02-10 22:00 UTC |
| A�roport de Montr�al | pm25 | 10.9 | µg/m³ | 2026-02-10 22:00 UTC |