Air quality in Rimouski, Quebec, Canada today
Mr. Duck’s Air Quality Score
Good air today for Rimouski, 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 Rimouski today is classified as Good. The primary pollutant measured is PM2.5 (fine particles). Five valid measurements were recorded, and the average concentration of PM2.5 is 0.0167 µg/m³.
Data are 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 dataset for Rimouski contains measurements from a single monitoring station that recorded five separate rows of data. All pollutants were last updated on the same moment, 2026‑02‑10 22:00 UTC, so the information is uniformly recent but represents only one point in time.
Five pollutants are reported: PM1 at 0.0 µg/m³, PM2.5 at 0.016666666666666666 µg/m³, relative humidity at 39.28733355204264 %, temperature at 0.33916666364918147 °C, and UM003 particles at 89.19999999999999 particles/cm³. For each parameter the minimum, median and maximum values are identical, indicating that only a single measurement is available for each pollutant rather than a range of observations.
Because the data come from just one station, spatial coverage across Rimouski is limited; conditions elsewhere in the city may differ from those captured here. The uniform timestamp shows that the dataset is fresh, yet the lack of multiple readings means there is no insight into short‑term variability or trends. The PM1 reading is consistently zero, while PM2.5 registers a very low value, suggesting minimal fine particulate matter at the time of sampling. Relative humidity and temperature are both recorded with precise decimal values, reflecting stable atmospheric conditions during the measurement period. Finally, the UM003 particle count provides a single snapshot of airborne particles per cubic centimetre, without any observed spread.
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 Rimouski is based on five valid measurements and was updated within three days, with the latest refresh recorded at 2026‑02‑10 22:00 UTC. This snapshot reflects conditions at a specific time and place; air quality can vary across different neighborhoods and moments throughout the day, so values may not represent the entire city’s current environment.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Rimouski | pm1 | 0.0 | µg/m³ | 2026-02-10 22:00 UTC |
| Rimouski | pm25 | 0.016666666666666666 | µg/m³ | 2026-02-10 22:00 UTC |
| Rimouski | relativehumidity | 39.28733355204264 | % | 2026-02-10 22:00 UTC |
| Rimouski | temperature | 0.33916666364918147 | c | 2026-02-10 22:00 UTC |
| Rimouski | um003 | 89.19999999999999 | particles/cm³ | 2026-02-10 22:00 UTC |