Cheshire West and Chester Council Monitoring Data
Cheshire West & Chester - Helsby (HELSB)
Latitude: 53.273269
Longitude: -2.773889
Longitude: -2.773889
Date Started: 19/10/2016
Environment: Urban Background
Environment: Urban Background
Latest Data
This monitoring site data was last updated: 21/11/2024 10:00
Parameter | Pollution Band | Concentration | Period |
---|---|---|---|
PM10 particulate matter (Hourly measured) | Low (Index 1) | 9 µg/m3 (FIDAS) | 24 Hour mean |
PM2.5 particulate matter (Hourly measured) | Low (Index 1) | 5 µg/m3 (Ref.eq) | 24 Hour mean |
Note: Values are based on provisional data. Data are GMT hour ending.
PM10 is measured as a running 24 hour mean, up to the current hour, and the band/index is calculated accordingly.