London Borough of Hillingdon Monitoring Data
Hillingdon Harmondsworth Osiris (HIL4)
Latitude: 51.487534
Longitude: -0.479451
Longitude: -0.479451
Date Started: 01/07/2007
Environment: Urban Background
Environment: Urban Background
Latest Data
This monitoring site data was last updated: 07/12/2024 06:00
Parameter | Pollution Band | Concentration | Period |
---|---|---|---|
PM2.5 particulate matter (Hourly measured) | Low (Index 1) | 10 µg/m3 (Osiris) | 24 Hour mean |
PM10 particulate matter (Hourly measured) | Low (Index 1) | 16 µg/m3 (INDIC GRAV) | 24 Hour mean |
PM1 Particulates (PM1) | not applicable | 5 µg/m3 (Osiris) | 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.
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