Air quality in Duncan, British Columbia, Canada today
Mr. Duck’s Air Quality Score
Good air today for Duncan, British Columbia, Canada
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
Today the air quality in Duncan, British Columbia is classified as Good. The primary pollutant identified is PM2.5 (fine particles). Recent measurements show a PM2.5 concentration of 9.0 µg/m³ based on four valid observations. The reading was recorded on 2026-02-23 12:00 UTC. PM10 data are not available for this period. Four separate monitoring stations contributed to the dataset. The reported PM2.5 value matches the reference level used for assessment. No other pollutants were reported above detection limits. Measurements were taken during the morning hour. The data reflect conditions at the time of sampling. All values are expressed in micrograms per cubic meter.
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 data for Duncan, British Columbia currently consists of four pollutant measurements – nitrogen monoxide (NO), nitrogen dioxide (NO2), ozone (O3) and fine particulate matter (PM2.5) – all recorded at a single monitoring location identified as Duncan College Stree. Each pollutant appears in one row of the dataset, giving a total of four recent rows that fall within the last 30 days. The most recent timestamp for every measurement is 2026-01-29 06:00 UTC, so the information is fresh and reflects conditions from that specific moment.
Because each pollutant has only one recorded value, the statistical summary shows identical minimum, median and maximum figures: NO is 0.0016 ppm, NO2 is 0.0086 ppm, O3 is 0.012 ppm and PM2.5 is 9.0 µg/m³. This lack of spread indicates that no variability was captured in the sampling period, rather than suggesting a stable environment. The dataset’s coverage is limited to a single station, so while the numbers are up‑to‑date, they represent only the air quality at that particular site and do not convey city‑wide differences that may exist across neighborhoods or times of day.
Overall, the dataset provides a concise snapshot of four key pollutants measured at one location, with all values recorded within the past month. The absence of older or unknown timestamps means the information is recent, but the sparse spatial coverage should be kept in mind when interpreting how representative these figures are for the broader Duncan area.
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
This snapshot is based on four valid measurements and was updated within 30 days, most recently on 2026-01-29 at 06:00 UTC. Air quality can differ across neighborhoods and times of day, so conditions at any specific location may not match this summary.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Duncan College Stree | no | 0.0016 | ppm | 2026-01-29 06:00 UTC |
| Duncan College Stree | no2 | 0.0086 | ppm | 2026-01-29 06:00 UTC |
| Duncan College Stree | o3 | 0.012 | ppm | 2026-01-29 06:00 UTC |
| Duncan College Stree | pm25 | 9.0 | µg/m³ | 2026-01-29 06:00 UTC |