Air quality in Exeter, England, United Kingdom today

Mr. Duck’s Air Quality Score

Moderate air today for Exeter, England, United Kingdom

⚠️ 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 Exeter today falls into the Moderate category according to OpenAQ data. The primary pollutant identified is PM2.5, with a measured concentration of approximately 14.92 µg/m³ based on seven valid observations.

Overall, the assessment reflects the current monitoring results without additional interpretation. 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 Exeter air‑quality dataset contains eight measured variables – nitrogen dioxide (NO2), ozone (O3), particulate matter of 1 µm (PM1), 10 µm (PM10) and 2.5 µm (PM2.5), relative humidity, temperature, and particle count (UM003). All values come from a total of two monitoring rows, one roadside sensor for NO2 and O3 and a separate site that records the remaining six parameters.

The most recent observations are from 2026‑02‑10 20:00 UTC for NO2 and O3, and 2026‑02‑10 21:00 UTC for PM1, PM2.5, relative humidity, temperature and UM003, showing that five of the eight pollutants have data updated within the last seven days. The only older entry is PM10, whose latest reading dates back to 2024‑12‑26 18:00 UTC, indicating a gap of more than a year for that metric.

Across the variables the recorded values are identical to their minimum, median and maximum, reflecting a single snapshot rather than a range of measurements. NO2 registers at 36.0 µg/m³, O3 at 42.0 µg/m³, PM1 at 10.456 µg/m³, PM2.5 at 14.917 µg/m³, PM10 at 0.778 µg/m³, relative humidity at 72.36 %, temperature at 12.77 °C and particle count at 1 692.46 particles/cm³. Because each pollutant has only one recorded value, there is no observed spread or variability in the dataset.

Overall the coverage is limited: just two stations supply all eight pollutants, with most data fresh but a single older PM10 record. Consequently, while the snapshot provides a current picture of Exeter’s air quality at specific locations and times, it does not capture spatial or temporal variations that may exist 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 Exeter are based on seven valid measurements and were refreshed recently, with the latest update recorded at 2026‑02‑10T21:00:00+00:00 (updated within 3 days). This snapshot reflects conditions captured across the monitoring network at that time. Air quality can vary by location and time within the city, so values may differ from those experienced elsewhere or later in the day.

OpenAQ station rows