Cardiff Centre
Latest Data: Updated 21/11/2024 09:00 GMT
| Parameter | Index | Band | Concentration | Period |
|---|---|---|---|---|
| PM10 | 1 | LOW | 12 µg/m3 (Ref.eq) | 24 Hour mean |
| PM2.5 | 1 | LOW | 10 µg/m3 (BAM) | 24 Hour mean |
| O3 | 1 | LOW | 19 µg/m3 | 8 Hour mean |
| SO2 | 1 | LOW | 5 µg/m3 | 15 Minute mean |
| NO2 | 1 | LOW | 56 µg/m3 | hourly mean |
| CO | No Data | 0.5 mg/m3 | 8 Hour mean | |
| NOXasNO2 | No Data | 148 µg/m3 | hourly mean | |
| NO | 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 |
|---|---|
| O3 | Ozone |
| NO | Nitric Oxide |
| NO2 | Nitrogen dioxide |
| NOXasNO2 | Nitrogen oxides as nitrogen dioxide |
| SO2 | Sulphur dioxide |
| CO | Carbon Monoxide |
| GE10 | Particulates < 10um (hourly measured) |
| PM25 | Particulates < 2.5um (hourly measured) |
Statistics for Cardiff Centre
| Site Name | Cardiff Centre |
|---|---|
| Site Type | Urban centre |
| Easting, Northing | 318416, 176526 |
| Latitude, Longitude | 51.481780, -3.176250 |
| OS Grid Ref | ST1841276530 |
| Address | Frederick Street, City Centre, Cathays, Cardiff |
| Site Comments | The monitoring station is within a self-contained, air-conditioned housing located within a pedestrianised area. The nearest road is some 200 metres distance with a flow of 27,000 vehicles per day and is subject to periodic congestion during peak periods. The manifold inlet is located approximately 3 metres above ground level. The surrounding area comprises retail and business premises. |
| Monitoring Network: Welsh Automatic Urban pollution Monitoring | ||
|---|---|---|
| Parameter | Date Started | Date Ended |
| Ethyl Benzene | 05/09/2002 | 10/09/2007 |
| Toluene | 05/09/2002 | 10/09/2007 |
| 1,3-Butadiene | 05/09/2002 | 10/09/2007 |
| mp-Xylene | 05/09/2002 | 10/09/2007 |
| Benzene | 05/09/2002 | 10/09/2007 |
| o-Xylene | 05/09/2002 | 10/09/2007 |
| Volatile PM2.5 (Hourly measured) | 12/08/2008 | 10/09/2020 |
| Nitrogen dioxide | 12/05/1992 | |
| Modelled Wind Direction | 01/08/2010 | |
| Non-volatile PM10 (Hourly measured) | 19/02/2006 | 10/09/2020 |
| Sulphur dioxide | 12/05/1992 | |
| Particulates < 10um (hourly measured) | 12/05/1992 | |
| Nitrogen oxides as nitrogen dioxide | 12/05/1992 | |
| Volatile PM10 (Hourly measured) | 19/02/2006 | 10/09/2020 |
| Carbon Monoxide | 12/05/1992 | |
| Modelled Temperature | 01/08/2010 | |
| Ozone | 12/05/1992 | |
| Non-volatile PM2.5 (Hourly measured) | 12/08/2008 | 10/09/2020 |
| Nitric Oxide | 12/05/1992 | |
| Modelled Wind Speed | 01/08/2010 | |
| Particulates < 2.5um (hourly measured) | 12/08/2008 | |
The photographs show the site itself, and views looking North, East, South and West.
Monitoring Site Photo
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