London Borough of Westminster Monitoring Data
Westminster - Oxford Street (WMS06)
Latitude: 51.513980
Longitude: -0.152682
Date Started: 01/04/2026
Longitude: -0.152682
Date Started: 01/04/2026
Inlet Height: 1.5 metres
Environment: Urban Traffic
Environment: Urban Traffic
Site Comments
Located on a very busy road with high footfall and categorised as a focus area.
Located on a very busy road with high footfall and categorised as a focus area.
Latest Data
This monitoring site data was last updated: 13/04/2026 10:00
| Parameter | Pollution Band | Concentration | Period |
|---|---|---|---|
| Nitrogen dioxide (NO2) | Low (Index 1) | 19 µg/m3 | hourly mean |
| Nitric oxide (NO) | not applicable | 4 µg/m3 | hourly mean |
| Nitrogen oxides as nitrogen dioxide (NOx as NO2) | not applicable | 25 µg/m3 | hourly mean |
Note: Values are based on provisional data. Data are GMT hour ending.
PM10 is measured as a running 24 hour mean, up to the current hour, and the band/index is calculated accordingly.
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