London Borough of Westminster Monitoring Data
Westminster - Elizabeth Bridge (WMS04)
Latitude: 51.492260
Longitude: -0.147093
Date Started: 27/04/2020
Longitude: -0.147093
Date Started: 27/04/2020
Inlet Height: 1.5 metres
Environment: Urban Traffic
Environment: Urban Traffic
Site Comments
Located close to the bus station with large numbers of coach movements.
Located close to the bus station with large numbers of coach movements.
Latest Data
This monitoring site data was last updated: 11/05/2026 17:00
| Parameter | Pollution Band | Concentration | Period |
|---|---|---|---|
| Nitrogen dioxide (NO2) | Low (Index 1) | 25 µg/m3 | hourly mean |
| PM2.5 particulate matter (Hourly measured) | Low (Index 1) | 5 µg/m3 (BAM) | 24 Hour mean |
| Nitric oxide (NO) | not applicable | 12 µg/m3 | hourly mean |
| Nitrogen oxides as nitrogen dioxide (NOx as NO2) | not applicable | 43 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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