UK-AIR Sensor Observation Service API (Defra)
UK-AIR Sensor Observation Service API (Defra)
Defra's UK-AIR air-quality information resource offers a keyless Sensor Observation Service (SOS) REST API with monitoring station metadata and pollutant time series from UK networks.
Required Attribution:
Required: "© Crown 2026 copyright Defra via uk-air.defra.gov.uk, licenced under the Open Government Licence (OGL)."
Coverage
UK air-quality monitoring stations and pollutant time series (e.g. nitrogen dioxide). Update frequency and history start: Not stated on the pages read.
Verdict
Keyless SOS REST API from Defra's UK-AIR. Licensed OGL-UK-2.0, the more restrictive of two statements: the licensing paragraph says "Information on uk-air.defra.gov.uk is published by Defra and the Devolved Administrations under the Open Government Licence (OGL)" and links OGL version 2, while the footer says "All content is available under the Open Government Licence v3.0, except where otherwise stated." Rate limits: Not stated. Signal Lab links only.
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