All bright and glittering in the smokeless 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
2019-04-1623:00:00281 Low772 Low475 Moderate615 Moderate*3
2019-04-1622:00:00321 Low712 Low465 Moderate615 Moderate*3
2019-04-1621:00:00352 Low561 Low465 Moderate615 Moderate*3
2019-04-1620:00:00342 Low541 Low465 Moderate615 Moderate*3
2019-04-1619:00:00321 Low591 Low465 Moderate615 Moderate*3
2019-04-1618:00:00301 Low571 Low465 Moderate615 Moderate*3
2019-04-1617:00:00261 Low481 Low465 Moderate615 Moderate*3
2019-04-1616:00:00221 Low411 Low465 Moderate615 Moderate*3
2019-04-1615:00:00191 Low461 Low455 Moderate595 Moderate*3
2019-04-1614:00:00151 Low531 Low445 Moderate574 Moderate*3
2019-04-1613:00:00111 Low521 Low435 Moderate564 Moderate*3
2019-04-1612:00:0091 Low601 Low425 Moderate554 Moderate*3
2019-04-1611:00:0091 Low651 Low414 Moderate534 Moderate*3
2019-04-1610:00:0091 Low661 Low404 Moderate514 Moderate*3
2019-04-1609:00:0091 Low591 Low384 Moderate493 Low*3
2019-04-1608:00:00101 Low551 Low374 Moderate473 Low*3
2019-04-1607:00:00111 Low541 Low364 Moderate463 Low*3
2019-04-1606:00:00141 Low491 Low364 Moderate463 Low*3
2019-04-1605:00:00181 Low421 Low353 Low453 Low*3
2019-04-1604:00:00221 Low391 Low353 Low453 Low*3
2019-04-1603:00:00n/a611 Low343 Low443 Low*3

© 2019 Crown copyright Defra via uk-air.defra.gov.uk, licenced under the Open Government Licence (OGL).