Welcome to the UK Air Pollution Information System (APIS). Air pollution is one of the major environmental issues in the UK, with impacts occurring at local, regional and global scales. Much is known about the impacts on natural heritage features, with major steps already being taken in the development of abatement strategies both at national and international levels. It is clear, however, that there are still major gaps in the scientific understanding. This site provides a searchable database and information on pollutants and their impacts on habitats and species.

Air Pollution Information System

Latest news

APIS website update - old tools withdrawal

Submitted by audric on Tue, 10/12/2024 - 16:28

Dear community,

To comply with the latest safety standards, the APIS website will be upgraded by the 5th January. While it mostly means a layout change for users, two tools will be withdrawned, as they cannot be supported in the new version of the APIS website:

APIS 2020-2022 ammonia data change

Submitted by Anonymous (not verified) on Fri, 26/07/2024 - 14:29

Just over a month ago we released the new APIS 2020-2022 data. Recently, some users have pointed us out to us that the NH3 concentrations were abnormally high compared to the N depositions. We, together with the CBED team, investigated this further. We just discovered that there was a bug that caused the CBED NH3 concentrations to be calculated in ppm instead of ug/m3. This is only affecting NH3 concentrations for midyear 2021.

APIS dataset new version release (11/06/2024)

Submitted by Cristina Martin... on Tue, 11/06/2024 - 13:06

All the UK APIS data (UK background pollutants and UK protected sites) are updated (3 year average for 2020-2022). The app will automatically load the new dataset for UK (midyear 2021).

Now Working! - APIS GIS map and MCP tools are down - 07/06/24

Submitted by Cristina Martin... on Fri, 07/06/2024 - 08:38

UPDATE: Everyhting works as expected

APIS database is under maintenance. We apologize for the inconvenience, and will keep you updated as soon as we have more information.

APIS database maintenance

Submitted by Cristina Martin... on Fri, 24/05/2024 - 09:19

UPDATE 28/05 : Everything is working as expected.

UPDATE 24/05 17:05 : our server is still under maintenance, our IT team is still working hard on this unexpected issue. The issue may be solved not until Tuesday 28th May. We apologize for the inconvenience, and will keep you updated as soon as we have more information.

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