And there's a change in the air

Air Quality Monitoring Station: London Harlington

Location ID: UKA00472 / GB0837A

Environment Type: Urban Industrial

Defra Region: London

Location: London

Notes: The monitoring station is located within a self contained air conditioned housing in the grounds of Imperial College Sports Facility in Harlington, 1 kilometre north of the Heathrow Airport perimetre road. The nearest road is a minor road located approximately 10 metres from the station. The M4 motorway is located approximately 800 metres from the station. The surrounding area is comprised of open fields and residential dwellings.

Measurements taken at this site:
Running 8 Hour mean Ozone (µgm-3)
Hourly mean Nitrogen dioxide (µgm-3)
Running 24 Hour mean PM2.5 Particles (µgm-3)
Running 24 Hour mean PM10 Particles (µgm-3)

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Most recent measurements

Latest data at the top. "n/a" means no measurement was taken in that time period.

DateTime Running 8 Hour mean Ozone
(µgm-3)
Hourly mean Nitrogen dioxide
(µgm-3)
Running 24 Hour mean PM2.5 Particles
(µgm-3)
Running 24 Hour mean PM10 Particles
(µgm-3)
ValueLevelValueLevelValueLevelValueLevel
2017-10-1911:00:00101 Low351 Low263 Low413 Low*3
2017-10-1910:00:00121 Low321 Low263 Low413 Low*3
2017-10-1909:00:00121 Low361 Low263 Low403 Low*3
2017-10-1908:00:00121 Low301 Low253 Low393 Low*3
2017-10-1907:00:00121 Low181 Low253 Low393 Low*3
2017-10-1906:00:00121 Low111 Low243 Low393 Low*3
2017-10-1905:00:00111 Low61 Low243 Low383 Low*3
2017-10-1904:00:0061 Low121 Low232 Low383 Low*3
2017-10-1903:00:0061 Low121 Low232 Low383 Low*3
2017-10-1902:00:0041 Low211 Low232 Low373 Low*3

© 2017 Crown copyright Defra via uk-air.defra.gov.uk, licenced under the Open Government Licence (OGL).