Chepstow A48
Latest Data: Updated 21/12/2024 14:00 GMT
| Parameter | Index | Band | Concentration | Period |
|---|---|---|---|---|
| PM10 | 1 | LOW | 12 µg/m3 (Ref.eq) | 24 Hour mean |
| PM2.5 | 1 | LOW | 7 µg/m3 (BAM) | 24 Hour mean |
| NO2 | 1 | LOW | 32 µg/m3 | hourly mean |
| NO | No Data | 18 µg/m3 | hourly mean | |
| NOXasNO2 | No Data | 60 µg/m3 | hourly mean | |
Note: Values are based on provisional data. Data are GMT hour ending.
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| Parameter | Parameter Name |
|---|---|
| NO | Nitric Oxide |
| NO2 | Nitrogen dioxide |
| NOXasNO2 | Nitrogen oxides as nitrogen dioxide |
| GE10 | Particulates < 10um (hourly measured) |
| PM25 | Particulates < 2.5um (hourly measured) |
Statistics for Chepstow A48
| Site Name | Chepstow A48 |
|---|---|
| Site Type | Roadside |
| Easting, Northing | 353126, 193473 |
| Latitude, Longitude | 51.638094, -2.678731 |
| OS Grid Ref | ST531934 |
| Address | Hardwick Hill, Chepstow Monmouthshire |
| Site Comments | Situated on inclined section of A48 to assess road traffic related air quality issues in the locality |
| Monitoring Network: Welsh Automatic Urban pollution Monitoring | ||
|---|---|---|
| Parameter | Date Started | Date Ended |
| Nitric Oxide | 03/09/2004 | |
| Modelled Wind Direction | 01/08/2010 | |
| Non-volatile PM10 (Hourly measured) | 08/02/2010 | 09/08/2018 |
| Particulates < 10um (hourly measured) | 03/09/2004 | |
| Nitrogen dioxide | 03/09/2004 | |
| Volatile PM10 (Hourly measured) | 08/02/2010 | 09/08/2018 |
| Modelled Temperature | 01/08/2010 | |
| Nitrogen oxides as nitrogen dioxide | 03/09/2004 | |
| Non-volatile PM2.5 (Hourly measured) | 09/02/2010 | 09/08/2018 |
| Modelled Wind Speed | 01/08/2010 | |
| Particulates < 2.5um (hourly measured) | 09/02/2010 | |
| Volatile PM2.5 (Hourly measured) | 09/02/2010 | 09/08/2018 |
The photographs show the site itself, and views looking North, East, South and West.
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