Air quality in Saint-Joseph-de-Sorel, Quebec, Canada today
Mr. Duck’s Air Quality Score
Good air today for Saint-Joseph-de-Sorel, 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 Saint‑Joseph‑de‑Sorel is currently classified as Good. The primary pollutant measured today is PM2.5 (fine particles). Two valid measurements were recorded, and the reported concentration of PM2.5 is 7.0 µg/m³.
No other pollutants reached measurable levels for reporting. 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 record for Saint‑Joseph‑de‑Sorel currently includes data from a single monitoring location, providing measurements for two pollutants: ozone (O3) and fine particulate matter (PM2.5). Both variables were last reported on 2026‑02‑10 at 22:00 UTC, meaning the most recent observations are less than three days old and therefore reflect very recent conditions in the community.
For ozone, the dataset contains a single value of 0.031 ppm, which is also the minimum, median and maximum recorded across the available row. This uniform figure indicates that only one measurement was captured during the reporting period, so there is no observed variation to describe. The same pattern holds for PM2.5, where the lone entry records a concentration of 7.0 µg/m³; again this value serves as the minimum, median and maximum for the city’s data set.
Because only one row of data exists for each pollutant, the coverage is limited to that specific site and does not capture spatial differences that may occur elsewhere in Saint‑Joseph‑de‑Sorel. The timestamps are all recent, but the lack of multiple observations means there is no insight into short‑term fluctuations or longer‑term trends. Consequently, while the current figures give a snapshot of ozone and PM2.5 levels at the reporting time, they should be understood as representing a single point in space and time rather than the full range of conditions that can occur across the city.
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 Saint‑Joseph‑de‑Sorel is based on two valid measurements and was refreshed within the past three days, with the most recent update recorded at 2026‑02‑10T22:00:00+00:00. This snapshot reflects conditions at a specific time and place; air quality can differ across neighborhoods and change rapidly throughout the day.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| St-Joseph-de-Sorel - | o3 | 0.031 | ppm | 2026-02-10 22:00 UTC |
| St-Joseph-de-Sorel - | pm25 | 7.0 | µg/m³ | 2026-02-10 22:00 UTC |