Since December 1997 each local authority in the UK has been carrying out a review and assessment of air quality in their area. This involves measuring air pollution and trying to predict how it will change in the next few years. The aim of the review is to make sure that the national air quality objectives (PDF) will be achieved throughout the UK by the relevant deadlines. These objectives have been put in place to protect people's health and the environment. If a local authority finds any places where the objectives are not likely to be achieved, it must declare an Air Quality Management Area (AQMA) there. This area could be just one or two streets, or it could be much bigger.

For more information about AQMAs refer to guidance on GOV.WALES.

© Crown 2026 copyright Defra via uk-air.defra.gov.uk, licenced under the Open Government Licence (OGL).

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Attributes (19)

Attribute name Label Description
aqma_id Air Quality Management Area ID
la_id Local Authority ID
aqma_ref Air Quality Management Area Reference
la_ons_id ONS code
local_auth_cy Awdurdod Lleol
la_ons_nam_cy Enw awdurdod lleol SYG
local_auth Local Authority
la_ons_nam ONS Local authority name
title Title
descriptio_cy Disgrifiad
descriptio Description
area_m2 Area m2
area_km2 Area km2
no2 Nitrogen Dioxide
pm10 Particulate Matter 10
so2 Sulphur Dioxide
benzene Benzene
fid
geom

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Type:
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Open Government Licence for Public Sector Information (OGL)

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Language
English
Temporal Extent
July 13, 2026, midnight - July 13, 2026, midnight
Spatial Representation Type
Vector data is used to represent geographic data