Air quality in Trois-Rivières, Quebec, Canada today
Mr. Duck’s Air Quality Score
Good air today for Trois-Rivières, 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 Trois‑Rivières is currently rated as Good. The main pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 concentration of 7.7 µg/m³, based on two valid observations reported through OpenAQ.
Overall conditions meet the Good category criteria with no additional pollutants highlighted. 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 air‑quality feed for Trois‑Rivières currently provides data on two measured pollutants: ozone (O3) and fine particulate matter (PM2.5). Both substances are reported from a single monitoring location – the “Trois‑Rivières – Éco” station – so there is one row of data for each pollutant.
All available observations are very recent. The most recent timestamp for both O3 and PM2.5 is 2026‑02‑10 22:00 UTC, which falls within the last three days and therefore reflects current conditions at the time of access. Because only two rows exist in total, the dataset’s coverage across the city is limited to this one site; other parts of Trois‑Rivières are not represented in the present feed.
The values themselves show no variation over the reporting period. Ozone is recorded at a constant 0.031 ppm, with the minimum, median, and maximum all equal to that figure. Likewise, PM2.5 is consistently measured at 7.7 µg/m³ across its single entry. The lack of spread means there is no observable range or percentile distribution for either pollutant in this dataset.
In summary, the data set includes ozone and fine particulate matter from one monitoring station, with both pollutants updated on the same recent timestamp and each showing a single, unchanging measurement value. Because coverage is limited to this lone location, conditions elsewhere in Trois‑Rivières may differ from what is captured 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 Trois‑Rivières is based on two valid measurements and was updated within 3 days, with the latest reading recorded at 2026‑02‑10T22:00:00+00:00. While this provides a recent snapshot of local air quality, conditions can differ across neighbourhoods 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 |
|---|---|---|---|---|
| Trois-Rivi�res - �co | o3 | 0.031 | ppm | 2026-02-10 22:00 UTC |
| Trois-Rivi�res - �co | pm25 | 7.7 | µg/m³ | 2026-02-10 22:00 UTC |