In St. Helens there are 4 monitoring stations that constantly monitor the quality of the air, as well as 32 diffusion tubes all over the town that measure oxides of nitrogen, and provide monthly average figures.

 

Here you can find out more about the locations of the monitoring stations and why those areas have been selected as Air Quality Management Areas (AQMAs) to record data. 

To examine the data collected in more detail click here

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 Borough Road 
 High Street 
 Southworth Road 
 Linkway