Air quality in South Cambridgeshire, England, United Kingdom today

Mr. Duck’s Air Quality Score

Good air today for South Cambridgeshire, 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 South Cambridgeshire today is classified as Good. The primary pollutant measured is PM2.5. The reported PM2.5 concentration is 5.5647 µg/m³. This assessment is based on ten valid measurements.

Data is shown via OpenAQ. PM10 values are not available for this period. The information presented reflects the current monitoring conditions for the area. The reported PM2.5 value of 5.5647 µg/m³ corresponds to the reference value used for the assessment. The measurement count of ten ensures the assessment is based on multiple observations. South Cambridgeshire is located in the East of England, United Kingdom. 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 South Cambridgeshire air‑quality record pulls together five measured pollutants – PM1, PM2.5, relative humidity, temperature and UM003 particles – from OpenAQ. All observations come from two monitoring stations, each contributing a row for every pollutant, giving a total of ten recent rows. The newest timestamps for every variable are from 2026‑02‑10 21:00 UTC, which places the data well within the last 30 days and therefore reflects the current state of the local atmosphere.

PM1 values in the dataset range from 2.44 µg/m³ up to 14.52 µg/m³, with a median of 8.48 µg/m³ and the central 80 % of readings falling between 3.64 and 13.31 µg/m³. PM2.5 spans a broader interval, from 5.56 µg/m³ to 26.18 µg/m³, a median of 15.87 µg/m³ and a 10th‑90th percentile spread of 7.63 to 24.12 µg/m³. Relative humidity is tightly clustered between 60.68 % and 66.44 %, median 63.56 %, with most values between 61.25 % and 65.86 %. Temperature varies from 8.25 °C to 13.44 °C, median 10.84 °C, and the bulk of the record sits between 8.77 °C and 12.92 °C. UM003 particle counts show the greatest variability, ranging from 348.94 to 2 026.48 particles/cm³, a median of 1 187.71 particles/cm³, and an 80 % spread from 516.70 to 1 858.73 particles/cm³.

Because the observations are limited to the Harston sites, they capture conditions at those locations but do not represent the full geographic diversity of South Cambridgeshire. Nonetheless, the data are fresh and provide a clear picture of the recent range and typical levels for each pollutant across the two stations.

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

This dataset includes 10 valid measurements and is updated within 30 days. The most recent update was on 2026-02-10 at 21:00 UTC. Air quality can vary by location and time within South Cambridgeshire, so this snapshot may not reflect conditions at all sites.

OpenAQ station rows