How Is Air Pollution Being Measured?
Wrexham County Borough Councils Public Protection Department monitors air pollution in two ways, automatic and non-automatic.
There is an automatic monitoring station situated near to Wrexham Town (Victoria Road). Details and current Air Quality levels can be found by following either link below:
The Station continuously monitor for Oxides of Nitrogen (NOx), Sulphur Dioxide (SO2) and Particulate Matter (PM10). Though the technique for monitoring PM10 is not real time and hence only historic information can be viewed via Welsh Air Quality Forum (external link) and completing the required information.
This station is part of the Automatic Urban and Rural Network (AURN) which is a network of Air Quality stations that covers the UK.
The Automatic Urban and Rural Network Station at Victoria Road
Inside of the Automatic Urban and Rural Network Station
Non Automatic Monitoring
Diffusion tubes are a simple and cost effective way to measure pollutants over a period of time (usually one month). These tubes are used to monitor for:
- Nitrogen Dioxide (type of tube shown on the left in the picture below)
- Benzene (type of tube shown on the right in the picture below)
The diffusion tubes are exposed all over the County Borough each month. Following which they are sent off to an independent laboratory for analysis. The results can be viewed on the archive of monitoring data.