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 3pm Mon 24th Mar 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/m17 (1 Low)n/m29 (3 Low)n/m 24/03/2025
15:00
Blackburn Accrington Road
Timeseries Graph
n/m24 (1 Low)n/mn/mn/m 24/03/2025
15:00
Blackburn Audley Park
Timeseries Graph
56 (2 Low)n/mn/m23 (2 Low)32 (2 Low)
*2
24/03/2025
15:00
Blackpool Marton
Timeseries Graph
71 (3 Low)13 (1 Low)n/m25 (3 Low)34 (3 Low)
*2
24/03/2025
15:00
Blackpool Whitegate Drive
Timeseries Graph
n/mn/mn/m27 (3 Low)n/m 24/03/2025
15:00
Bury Whitefield Roadside
Timeseries Graph
n/m14 (1 Low)n/mn/m34 (3 Low)
*1
24/03/2025
15:00
Carlisle Morton A595
Timeseries Graph
n/m2 (1 Low)n/m16 (2 Low)27 (2 Low)
*1
24/03/2025
15:00
Crewe Coppenhall
Timeseries Graph
69 (3 Low)9 (1 Low)n/m29 (3 Low)38 (3 Low)
*2
24/03/2025
15:00
Glazebury
Timeseries Graph
69 (3 Low)7 (1 Low)n/m23 (2 Low)31 (2 Low)
*2
24/03/2025
15:00
Liverpool Speke
Timeseries Graph
58 (2 Low)11 (1 Low)0 (1 Low)24 (3 Low)38 (3 Low)
*1
24/03/2025
15:00
Liverpool Thirlmere Park
Timeseries Graph
63 (2 Low)n/mn/m28 (3 Low)39 (3 Low)
*2
24/03/2025
15:00
Manchester Piccadilly
Timeseries Graph
53 (2 Low)21 (1 Low)2 (1 Low)28 (3 Low)42 (3 Low)
*2
24/03/2025
15:00
Manchester Sharston
Timeseries Graph
54 (2 Low)11 (1 Low)n/m31 (3 Low)42 (3 Low)
*2
24/03/2025
15:00
Middlewich St Michael's Way
Timeseries Graph
n/mn/mn/m29 (3 Low)n/m 24/03/2025
15:00
Preston
Timeseries Graph
54 (2 Low)13 (1 Low)n/m23 (2 Low)33 (2 Low)
*2
24/03/2025
15:00
Salford Eccles
Timeseries Graph
69 (3 Low)13 (1 Low)n/m30 (3 Low)43 (3 Low)
*2
24/03/2025
15:00
Shaw Crompton Way
Timeseries Graph
n/m24 (1 Low)n/mn/mn/m 24/03/2025
15:00
St Helens Linkway
Timeseries Graph
n/m24 (1 Low)n/mn/m30 (2 Low)
*1
24/03/2025
15:00
Warrington
Timeseries Graph
n/m7 (1 Low)n/m22 (2 Low)35 (3 Low)
*1
24/03/2025
15:00
Widnes Milton Road
Timeseries Graph
n/m27 (1 Low)n/mn/mn/m 24/03/2025
15:00
Wigan Centre
Timeseries Graph
58 (2 Low)7 (1 Low)n/m25 (3 Low)33 (2 Low)
*2
24/03/2025
15:00
Wirral Tranmere
Timeseries Graph
71 (3 Low)6 (1 Low)n/m27 (3 Low)36 (3 Low)
*2
24/03/2025
15:00

» 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