In Halton there are 2 monitoring stations that constantly monitor the quality of the air, as well as 15 diffusion tubes around the borough that measure oxides of nitrogen, mostly around the AQMAs (Air Quality Management Areas).

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

To examine the data collected in more detail click here

 Milton Road, Widnes 
 Marzahn Way, Widnes