Air quality in Central Elgin, Ontario, Canada today
Mr. Duck’s Air Quality Score
Moderate air today for Central Elgin, 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 Central Elgin today is classified as Moderate. The primary pollutant identified is PM2.5 (fine particles).
Measurements from five valid observations show a PM2.5 concentration of 26.0 µg/m³. No PM10 value is available for this assessment. Data is shown via 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 Central Elgin air‑quality record draws on eight recent observations collected at a single monitoring site, Port Stanley. For each of the five pollutants tracked—nitrogen monoxide (NO), nitrogen dioxide (NO₂), total oxides of nitrogen (NOX), ozone (O₃) and fine particulate matter (PM2.5)—the most current reading was logged on 2026‑02‑10 at 22:00 UTC, which falls within the “updated within three days” window used by the OpenAQ feed.
Across the eight rows the data show a modest spread for each gas. NO₂ values range from a low of 0.002 ppm to a high of 0.011 ppm, with a median of 0.0065 ppm and the central 80 % of observations falling between roughly 0.0029 ppm (10th percentile) and 0.0101 ppm (90th percentile). Ozone is measured between 0.038 ppm and 0.052 ppm, centering on a median of 0.045 ppm; the inter‑percentile band runs from about 0.0394 ppm to 0.0506 ppm. PM2.5 concentrations sit in a tighter window, from 26 µg/m³ up to 34 µg/m³, with a median of 30 µg/m³ and the 10th‑90th percentile range spanning 26.8 µg/m³ to 33.2 µg/m³. The nitrogen monoxide reading is constant at 0.001 ppm for all rows, while NOX is uniformly reported as 0.012 ppm.
Because the dataset comes from a single station, spatial coverage across Central Elgin is limited; conditions elsewhere in the city may differ from those captured at Port Stanley. Nevertheless, the timestamps indicate that every pollutant has a recent measurement, and the recorded values exhibit relatively narrow variability, especially for NO, NOX and PM2.5. This combination of fresh data and modest ranges provides a snapshot of current air quality at one location within Central Elgin.
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 Central Elgin reflects five valid measurements and was updated within three days, with the most recent reading recorded on 2026‑02‑10 at 22:00 UTC. This snapshot provides a current view of air quality across the city, but conditions can differ by specific neighbourhoods and change throughout the day, so local variations may not be captured in this summary.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Port Stanley | no2 | 0.002 | ppm | 2023-07-17 17:00 UTC |
| Port Stanley | o3 | 0.052 | ppm | 2023-07-14 15:00 UTC |
| Port Stanley | pm25 | 34.0 | µg/m³ | 2023-07-17 17:00 UTC |
| Port Stanley | no | 0.001 | ppm | 2026-02-10 22:00 UTC |
| Port Stanley | no2 | 0.011 | ppm | 2026-02-10 22:00 UTC |
| Port Stanley | nox | 0.012 | ppm | 2026-02-10 22:00 UTC |
| Port Stanley | o3 | 0.038 | ppm | 2026-02-10 22:00 UTC |
| Port Stanley | pm25 | 26.0 | µg/m³ | 2026-02-10 22:00 UTC |