Air quality in King's Lynn and West Norfolk, England, United Kingdom today
Mr. Duck’s Air Quality Score
Moderate air today for King's Lynn and West Norfolk, England, United Kingdom
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality today in King's Lynn and West Norfolk is classified as Moderate. The primary pollutant identified for this assessment is PM2.5 (fine particles).
Measurements recorded via OpenAQ show a PM2.5 concentration of 21.6 µg/m³ based on five valid observations. No PM10 reference value is available for this period. 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 dataset for King’s Lynn and West Norfolk contains measurements from a single monitoring site, giving a total of six rows of data. All six pollutants that the OpenAQ feed records are present: PM1, PM10, PM2.5, relative humidity, temperature and UM003 (particle count). For five of these – PM1, PM2.5, relative humidity, temperature and UM003 – the most recent reading was taken on 2026‑02‑10 at 21:00 UTC, so the information is very fresh. The PM10 value is older, last updated on 2025‑01‑13 at 23:00 UTC, which means that for this particular pollutant the data are more than a year out of date.
Because each pollutant has only one recorded value, the minimum, median and maximum are identical. PM1 registers at 10.7335 µg/m³, PM2.5 at 21.6057 µg/m³ and PM10 at 26.7422 µg/m³. Relative humidity is measured at 75.9175 % and temperature at 11.5578 °C. The particle concentration reported by the UM003 sensor stands at 2 058.18 particles per cubic centimetre. This uniformity shows that the current snapshot reflects a single moment in time rather than a range of observations, so any variation throughout the day or across different parts of the district cannot be captured from this dataset.
Overall the coverage is limited to one station, and while most pollutants are reported with up‑to‑date values, the older PM10 reading highlights an uneven freshness across the data series. Consequently, the picture presented here offers a precise but narrow view of air quality in King’s Lynn and West Norfolk at the recorded moment, and conditions may differ elsewhere or change later in the day.
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 reflects five valid measurements and is updated within 3 days, with the most recent reading recorded on 10 February 2026 at 21:00 UTC. While these figures give a current overview of air quality in King’s Lynn and West Norfolk, conditions can differ across neighbourhoods and change throughout the day, so this snapshot may not represent every location or moment within the city.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Downham Market | pm1 | 10.733500003814697 | µg/m³ | 2026-02-10 21:00 UTC |
| Downham Market | pm10 | 26.74216651916504 | µg/m³ | 2025-01-13 23:00 UTC |
| Downham Market | pm25 | 21.605666669209796 | µg/m³ | 2026-02-10 21:00 UTC |
| Downham Market | relativehumidity | 75.91749954223633 | % | 2026-02-10 21:00 UTC |
| Downham Market | temperature | 11.55783354441325 | c | 2026-02-10 21:00 UTC |
| Downham Market | um003 | 2058.183333333334 | particles/cm³ | 2026-02-10 21:00 UTC |