Air quality in Brantford, Ontario, Canada today
Mr. Duck’s Air Quality Score
Moderate air today for Brantford, Ontario, 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 Brantford today is classified as Moderate. The primary pollutant identified is PM2.5 (fine particles).
Measurements show a PM2.5 concentration of 23.0 µg/m³ based on five valid observations reported through OpenAQ. 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 Brantford air‑quality feed contains five measured pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO2), total nitrogen oxides (NOX), ozone (O3) and fine particulate matter (PM2.5). All of the data come from a single monitoring station, but the dataset includes eight individual rows covering the different compounds. The most recent timestamp for every pollutant is 2026‑02‑10 22:00 UTC, and each entry is marked as having been updated within the past three days, so the information reflects very current conditions.
Across the pollutants the range of values varies. NO registers a constant zero across its single row, while NOX shows a uniform reading of 0.007 ppm. NO2 spans from a low of 0.002 ppm to a high of 0.006 ppm, with a median of 0.004 ppm and the 10th‑percentile at about 0.0024 ppm. Ozone is recorded between 0.036 ppm and 0.049 ppm, centering around a median of 0.0425 ppm; its 10th‑percentile sits near 0.0373 ppm and the 90th‑percentile close to 0.0477 ppm. PM2.5 values are expressed in micrograms per cubic metre, ranging from 23.0 µg/m³ up to 36.0 µg/m³, with a median of 29.5 µg/m³ and the inter‑decile spread (10th‑ to 90th‑percentile) running roughly from 24.3 µg/m³ to 34.7 µg/m³.
Because only one station contributes data, coverage is limited to a single location in Brantford, and some pollutants (NO and NOX) are represented by just one row each, whereas others have two rows. Nevertheless, the dataset is recent and provides a snapshot of current concentrations for all five compounds, acknowledging that actual conditions can differ across other parts of the city and at different times.
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 Brantford reflects five valid measurements and is updated within 3 days, with the most recent reading recorded on 2026‑02‑10 at 22:00 UTC. This snapshot provides a current view of citywide air quality but conditions can differ across neighborhoods and change throughout the day, so local variations may exist.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Brantford | no2 | 0.002 | ppm | 2023-07-17 17:00 UTC |
| Brantford | o3 | 0.049 | ppm | 2023-07-14 15:00 UTC |
| Brantford | pm25 | 36.0 | µg/m³ | 2023-07-17 17:00 UTC |
| Brantford | no | 0.0 | ppm | 2026-02-10 22:00 UTC |
| Brantford | no2 | 0.006 | ppm | 2026-02-10 22:00 UTC |
| Brantford | nox | 0.007 | ppm | 2026-02-10 22:00 UTC |
| Brantford | o3 | 0.036 | ppm | 2026-02-10 22:00 UTC |
| Brantford | pm25 | 23.0 | µg/m³ | 2026-02-10 22:00 UTC |