London Borough of Hounslow Monitoring Data
Hounslow Heston (HS6)
Date Started: 13/04/2006
Environment: Urban Traffic
This monitoring site data was last updated: 25/02/2021 10:00
|PM10 particulate matter (Hourly measured)||Low (Index 2)||18 µg/m3 (VCM)||24 Hour mean|
|Nitrogen dioxide (NO2)||Low (Index 1)||52 µg/m3||hourly mean|
|Nitric oxide (NO)||not applicable||14 µg/m3||hourly mean|
|Nitrogen oxides as nitrogen dioxide (NOx as NO2)||not applicable||74 µg/m3||hourly 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.
Other monitoring sites
Use the dropdown below to switch to another monitoring site within this local authority.