Air quality in Terrebonne, Quebec, Canada today

Mr. Duck’s Air Quality Score

Good air today for Terrebonne, Quebec, Canada

⚠️ This website is currently under active development. Some data may be incomplete or temporarily inaccurate. For health-critical decisions, please verify information through official government or environmental sources.

Categories follow US EPA AQI breakpoints for PM (estimate from latest valid measurements; this project does not compute EPA NowCast/24-hour AQI yet).

This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.

Air quality today

The air quality in Terrebonne today is classified as Good. The primary pollutant measured is PM2.5 (fine particles). According to the latest data, the PM2.5 concentration is 2.44 µg/m³, based on five valid measurements recorded by OpenAQ.

Overall conditions reflect a low level of particulate matter, with no additional pollutants reported for this assessment. 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 OpenAQ feed for Terrebonne currently contains a single monitoring row, so the data set represents one location rather than a network of stations across the city. All five measured variables are present: PM1 at 0.686 µg/m³, PM2.5 at 2.438 µg/m³, relative humidity at 31.606 %, temperature at 1.102 °C, and particle count (UM003) at 299.136 particles/cm³. Each of these readings was last updated on 2026-02-10 22:00 UTC, meaning the freshest information is just a few days old and falls within the “updated within 3 days” freshness bucket.

Because there is only one row, the statistical spread for every pollutant is identical – the minimum, median, maximum, 10th percentile and 90th percentile all match the single recorded value. This uniformity indicates that no variation can be observed from this dataset alone; any changes in air quality across different neighbourhoods or times of day would not be captured here. The data therefore provides a snapshot rather than a range of conditions.

Overall, the coverage is limited to one sensor and the timestamps are recent, but the lack of multiple stations means the picture of Terrebonne’s air quality is incomplete. Users should keep in mind that conditions can differ elsewhere in the city or at other moments, and additional monitoring points would be needed to describe those variations more fully.

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 current data set for Terrebonne includes five valid measurements and was updated within three days, with the latest refresh recorded at 2026‑02‑10 22:00 UTC. These values represent a snapshot of conditions across the monitoring network at that time. Air quality can vary by location and time within the city, so individual experiences may differ from the reported figures.

OpenAQ station rows