Air quality in Quesnel, British Columbia, Canada today

Mr. Duck’s Air Quality Score

Good air today for Quesnel, British Columbia, 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 Quesnel today is classified as Good. The primary pollutant measured is PM2.5 (fine particles). According to the latest data, the PM2.5 concentration is 4.7 µg/m³ and the accompanying PM10 level is 10.0 µg/m³, based on six valid measurements collected through OpenAQ.

These values indicate that the ambient particulate matter concentrations are within the range associated with a Good air‑quality category. 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 Quesnel air‑quality feed includes six measured pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter ≤ 10 µm (PM₁₀), particulate matter ≤ 2.5 µm (PM₂.₅) and sulfur dioxide (SO₂). Data come from three monitoring stations that together contributed 15 recent rows of observations. All values were recorded at the Johnston Avenue site, and each pollutant’s most recent reading was logged on 2026‑02‑10 at 22:00 UTC, which falls within the “updated within 3 days” freshness category.

Across the dataset the observed concentrations show a modest spread. NO₂ ranged from a low of 0.0029 ppm to a high of 0.011 ppm, with a median of 0.004 ppm; O₃ varied between 0.024 and 0.028 ppm, centering around 0.025 ppm. PM₂.₅ values were between 3.9 and 4.7 µg/m³, median 4.2 µg/m³, while PM₁₀ showed a broader interval from 3.0 up to 10.0 µg/m³, median 6.5 µg/m³. SO₂ was consistently low, recorded at exactly 0.001 ppm for the single recent entry, and NO appeared only once at 0.0051 ppm.

The coverage is uneven: PM₁₀ and PM₂.₅ have three rows each, NO₂ and O₃ also have three, but SO₂ has three rows while NO is represented by a single row. Although the latest timestamps are recent, the limited number of stations means that conditions can differ across neighbourhoods and times not captured here. Consequently, the data give a snapshot of current levels at one location rather than a comprehensive city‑wide picture.

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 Quesnel reflects six valid measurements and is updated within 3 days, with the most recent reading recorded on 2026‑02‑10 at 22:00 UTC. These values provide a current snapshot of citywide air quality but may not represent conditions at every neighbourhood or moment, as concentrations can change across different locations and times throughout the day.

OpenAQ station rows