Spelthorne Borough Council Monitoring Data
Spelthorne knowle Green (VS005)
Date Started: 01/01/2020
Environment: Urban Background
Site situated on corner side of portacabin
This monitoring site data was last updated: 14/04/2021 14:00
|Ozone (O3)||Low (Index 2)||57 µg/m3||8 Hour mean|
|PM10 particulate matter (Hourly measured)||Low (Index 1)||8 µg/m3||24 Hour mean|
|Nitrogen dioxide (NO2)||Low (Index 1)||23 µg/m3||hourly mean|
|Nitric oxide (NO)||not applicable||7 µg/m3||hourly mean|
|Carbon monoxide (CO)||not applicable||0.2 mg/m3||8 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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