Air quality in Cambridge, England, United Kingdom today

Mr. Duck’s Air Quality Score

Good air today for Cambridge, 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 Cambridge today is classified as Good. The primary pollutant identified is PM2.5, fine particulate matter, and the measured concentration aligns with a reference value of 0.0 µg/m³. Eight valid measurements contributed to this assessment.

Data are shown via OpenAQ and reflect the current monitoring results for Cambridge, 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

Cambridge’s OpenAQ feed currently provides data for four measured pollutants – nitrogen dioxide (NO₂), fine particulate matter (PM₂.5), relative humidity and temperature – collected from ten individual rows of sensor readings across two monitoring sites. The most recent PM₂.5, relative humidity and temperature values were recorded on 2026‑02‑09 at 21:00 UTC, while the latest NO₂ measurement is from 2026‑02‑10 at 20:00 UTC, indicating that all four pollutants have been updated within the past week.

PM₂.5 concentrations in the city range from a low of 0.57 µg/m³ to a high of 30.46 µg/m³, with a median value of about 4.19 µg/m³; the 10th and 90th percentiles sit at roughly 1.29 µg/m³ and 25.21 µg/m³ respectively, showing a fairly wide spread between typical background levels and occasional spikes. Relative humidity measurements are clustered between 60.33 % and 69.37 %, with a median of 60.91 % and narrow percentile bounds (10th ≈ 60.44 %, 90th ≈ 67.68 %), suggesting fairly consistent moisture conditions across the sampled locations. Temperature values vary from 11.65 °C to 13.66 °C, centred around a median of 12.75 °C; the 10th and 90th percentiles (≈ 11.87 °C and ≈ 13.48 °C) indicate modest day‑to‑day variation.

NO₂ is represented by a single reading from the Cambridge Roadside site, recorded at exactly 37.0 µg/m³; because only one row contributes this pollutant, its spatial coverage is limited compared with the other three variables that have multiple rows. Overall, while most data are recent, the uneven number of observations—especially for NO₂—means that city‑wide conditions can differ by location and time, and users should keep in mind that the available snapshots reflect only a subset of Cambridge’s micro‑environments.

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 dataset for Cambridge includes eight valid measurements and is refreshed regularly, having been updated within 3 days (last update: 2026‑02‑10T22:00:00+00:00). This snapshot reflects conditions at the time of collection; air quality can vary by location and time within the city, so values may differ across neighborhoods or later periods.

OpenAQ station rows