AURN Monitoring Site Monitoring Data
Swindon Walcot (SWHO, an AURN site)
Latitude: 51.558061
Longitude: -1.765678
Longitude: -1.765678
Date Started: 01/01/2018
Altitude: 104 metres
Altitude: 104 metres
Latest Data
This monitoring site data was last updated: Sorry, no current data available. The last data date time is: 03/04/2025 22:00
| Parameter | Pollution Band | Concentration | Period |
|---|---|---|---|
| Ozone (O3) | Low (Index 3) | 80 µg/m3 | 8 Hour mean |
| PM10 particulate matter (Hourly measured) | Low (Index 2) | 26 µg/m3 (FIDAS) | 24 Hour mean |
| PM2.5 particulate matter (Hourly measured) | Low (Index 2) | 17 µg/m3 (Ref.eq) | 24 Hour mean |
| Nitrogen dioxide (NO2) | Low (Index 1) | 20 µg/m3 | hourly mean |
| Nitric oxide (NO) | not applicable | 1 µg/m3 | hourly mean |
| Nitrogen oxides as nitrogen dioxide (NOx as NO2) | not applicable | 21 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.