Latest measured levels based on data provided by the Environment Agency

Here you can view the detailed data behind the latest measurement summary displayed on UK-AIR, and also a summary of information that has been displayed over the previous 24 hours. The detailed data tabulated below are from monitoring sites within the AURN. Graphs of hourly monitoring data are also available to view as weekly time series. You can also subscribe to this information as an email alert.

  • View the legend
  • Pollutant levels recorded for the hour up to 1am Tue 1st Jul 2025

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North West & Merseyside

Latest measured levels based on data provided by the Environment Agency
Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Running 24 Hour mean
PM2.5
Particles
(µgm-3)
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Birkenhead Borough Road
Timeseries Graph
n/m3 (1 Low)n/m6 (1 Low)n/m 01/07/2025
01:00:00
Blackburn Accrington Road
Timeseries Graph
n/m3 (1 Low)n/mn/mn/m 01/07/2025
01:00:00
Blackburn Audley Park
Timeseries Graph
55 (2 Low)n/mn/m8 (1 Low)13 (1 Low)
*2
01/07/2025
01:00:00
Blackpool Marton
Timeseries Graph
59 (2 Low)0 (1 Low)n/m5 (1 Low)9 (1 Low)
*2
01/07/2025
01:00:00
Blackpool Whitegate Drive
Timeseries Graph
n/mn/mn/m6 (1 Low)n/m 01/07/2025
01:00:00
Bury Whitefield Roadside
Timeseries Graph
n/m3 (1 Low)n/mn/m16 (1 Low)
*1
01/07/2025
01:00:00
Carlisle Morton A595
Timeseries Graph
n/m1 (1 Low)n/m4 (1 Low)6 (1 Low)
*1
01/07/2025
01:00:00
Crewe Coppenhall
Timeseries Graph
51 (2 Low)8 (1 Low)n/m6 (1 Low)11 (1 Low)
*2
01/07/2025
01:00:00
Glazebury
Timeseries Graph
59 (2 Low)5 (1 Low)n/m6 (1 Low)10 (1 Low)
*2
01/07/2025
01:00:00
Liverpool Speke
Timeseries Graph
51 (2 Low)9 (1 Low)1 (1 Low)8 (1 Low)12 (1 Low)
*1
01/07/2025
01:00:00
Liverpool Thirlmere Park
Timeseries Graph
51 (2 Low)n/mn/m6 (1 Low)12 (1 Low)
*2
01/07/2025
01:00:00
Manchester Piccadilly
Timeseries Graph
57 (2 Low)8 (1 Low)1 (1 Low)8 (1 Low)15 (1 Low)
*2
01/07/2025
01:00:00
Manchester Sharston
Timeseries Graph
53 (2 Low)5 (1 Low)n/m8 (1 Low)14 (1 Low)
*2
01/07/2025
01:00:00
Middlewich St Michael's Way
Timeseries Graph
n/mn/mn/m6 (1 Low)n/m 01/07/2025
01:00:00
Preston
Timeseries Graph
49 (2 Low)5 (1 Low)n/m7 (1 Low)10 (1 Low)
*2
01/07/2025
01:00:00
Salford Eccles
Timeseries Graph
63 (2 Low)4 (1 Low)n/m9 (1 Low)17 (2 Low)
*2
01/07/2025
01:00:00
Shaw Crompton Way
Timeseries Graph
n/m5 (1 Low)n/mn/mn/m 01/07/2025
01:00:00
St Helens Linkway
Timeseries Graph
n/m7 (1 Low)n/mn/m10 (1 Low)
*1
01/07/2025
01:00:00
Tameside A635 Manchester Road
Timeseries Graph
n/mn/mn/m9 (1 Low)n/m 01/07/2025
01:00:00
Warrington
Timeseries Graph
n/m2 (1 Low)n/m4 (1 Low)10 (1 Low)
*1
01/07/2025
01:00:00
Widnes Milton Road
Timeseries Graph
n/m9 (1 Low)n/mn/mn/m 01/07/2025
01:00:00
Wigan Centre
Timeseries Graph
57 (2 Low)4 (1 Low)n/m6 (1 Low)11 (1 Low)
*2
01/07/2025
01:00:00
Wirral Tranmere
Timeseries Graph
54 (2 Low)1 (1 Low)n/m5 (1 Low)8 (1 Low)
*2
01/07/2025
01:00:00

» View the latest regional summary for this region

Legend

  • n/m means that the pollutant is not measured at that site
  • n/a means that no data were recorded for the period
  • *1: measurements are PM10 BAM 1020 heated
  • *2: measurements are PM10 FIDAS
  • *3: measurements are PM10 SEQ 47/50