Air quality in Charlottetown, Prince Edward Island, Canada today
Mr. Duck’s Air Quality Score
Good air today for Charlottetown, Prince Edward Island, 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 Charlottetown today is classified as Good. The primary pollutant identified is PM2.5, with a measured concentration of 4.1 µg/m³. No PM10 value is available for this assessment.
Data are based on five valid measurements reported through OpenAQ. This reflects the current monitoring snapshot for the city. 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 Charlottetown air‑quality feed includes data for five measured pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), ozone (O₃), fine particulate matter (PM₂.5) and sulfur dioxide (SO₂). All five values come from a single monitoring location identified as CHARLOTTETOWN, so the dataset represents one station row for each pollutant. The most recent reading for every compound was recorded on 2026‑02‑10 at 22:00 UTC, and the system notes that each entry has been updated within the past three days, indicating a very fresh snapshot of conditions at that moment.
Because only one site contributes data, the reported numbers show no variation across time or space. For NO the concentration is 0.0002 ppm, for NO₂ it is 0.0018 ppm, for O₃ it is 0.037 ppm, for SO₂ it is 0.0003 ppm and PM₂.5 measures 4.1 µg/m³. Each pollutant’s minimum, median and maximum values are identical, so the dataset provides a single point rather than a range or distribution. This uniformity means there is no spread to describe; the typical (median) value equals the only recorded value for each compound.
The limited coverage – one sensor location and five rows of data – should be kept in mind when interpreting the numbers. While the timestamps are current, the lack of multiple stations means that spatial differences across Charlottetown are not captured, and any changes that occur after the last update will not be reflected until a new reading is posted. Consequently, the snapshot offers an up‑to‑date but very narrow view of air quality for 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 Charlottetown reflects five valid measurements and was refreshed recently, with the latest update recorded on 2026‑02‑10 at 22:00 UTC; it is considered “Updated within 3 days.” While this snapshot provides a reliable overview of current conditions, air quality can differ across neighborhoods and change throughout the day, so local variations may exist.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| CHARLOTTETOWN | no | 0.0002 | ppm | 2026-02-10 22:00 UTC |
| CHARLOTTETOWN | no2 | 0.0018 | ppm | 2026-02-10 22:00 UTC |
| CHARLOTTETOWN | o3 | 0.037 | ppm | 2026-02-10 22:00 UTC |
| CHARLOTTETOWN | pm25 | 4.1 | µg/m³ | 2026-02-10 22:00 UTC |
| CHARLOTTETOWN | so2 | 0.0003 | ppm | 2026-02-10 22:00 UTC |