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Air Quality Monitoring Station: London Hillingdon

Location ID: UKA00266 / GB0642A

Environment Type: Urban Background

Defra Region: London

Location: London

Notes: The monitoring station is within a self-contained, air-conditioned housing located on an open grass area approximately 2.5 metres from the kerb of a residential road. The site is bordered on three sides by residential roads and on the fourth by the busy M4 motorway, which is approximately 30 metres from the station and above the height of the inlet. The general area is open and protected from the M4 by trees.

Measurements taken at this site:
Running 8 Hour mean Ozone (µgm-3)
Hourly mean Nitrogen dioxide (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)
ValueLevelValueLevel
2019-04-1623:00:00352 Low661 Low
2019-04-1622:00:00382 Low551 Low
2019-04-1621:00:00392 Low481 Low
2019-04-1620:00:00392 Low521 Low
2019-04-1619:00:00372 Low581 Low
2019-04-1618:00:00342 Low481 Low
2019-04-1617:00:00291 Low441 Low
2019-04-1616:00:00241 Low471 Low
2019-04-1615:00:00211 Low581 Low
2019-04-1614:00:00171 Low431 Low
2019-04-1613:00:00131 Low461 Low
2019-04-1612:00:00111 Low551 Low
2019-04-1611:00:00111 Low561 Low
2019-04-1610:00:00111 Low611 Low
2019-04-1609:00:00121 Low551 Low
2019-04-1608:00:00121 Low501 Low
2019-04-1607:00:00131 Low501 Low
2019-04-1606:00:00161 Low351 Low
2019-04-1605:00:00171 Low351 Low
2019-04-1604:00:00181 Low431 Low
2019-04-1603:00:00191 Low431 Low
2019-04-1601:00:00281 Low611 Low

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