London Borough of Hounslow Monitoring Data
Hounslow Gunnersbury (HS8)
Latitude: 51.500676
Longitude: -0.284383
Date Started: 09/02/2012
Longitude: -0.284383
Date Started: 09/02/2012
Altitude: 2 metres
Environment: Urban Traffic
Environment: Urban Traffic
Site Comments
Hounslow - Hatton Cross
Hounslow - Hatton Cross
Latest Data
This monitoring site data was last updated: 01/07/2025 10:00
| Parameter | Pollution Band | Concentration | Period |
|---|---|---|---|
| PM10 particulate matter (Hourly measured) | Low (Index 2) | 23 µg/m3 (TEOM FDMS) | 24 Hour mean |
| PM2.5 particulate matter (Hourly measured) | Low (Index 2) | 16 µg/m3 (TEOM FDMS) | 24 Hour mean |
| Nitrogen dioxide (NO2) | No Data | hourly mean | |
| Nitric oxide (NO) | No Data | hourly mean | |
| Nitrogen oxides as nitrogen dioxide (NOx as NO2) | No Data | hourly mean | |
| Non-volatile PM10 (Hourly measured) | No Data | 24 Hour mean | |
| Volatile PM10 (Hourly measured) | No Data | 24 Hour mean | |
| Non-volatile PM2.5 (Hourly measured) | No Data | 24 Hour mean | |
| Volatile PM2.5 (Hourly measured) (Volatile PM2.5) | No Data | 24 Hour 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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