Air Pollution in Northern Ireland 2024 report released 13/11/25

Date published: 13 November 2025

This statistical report is the twenty-third in a series of annual reports on air quality in Northern Ireland. It contains summary information on key air quality monitoring results for 2024 and analysis from data collected by automatic monitoring stations.  

Download the report.

The key points are:

• Northern Ireland collected data from 23 automatic monitoring stations during 2024.
• The report provides details of air quality monitoring undertaken and gives a summary of results, as well as long-term trends. It also sets out information on the progress being made by councils in managing local air quality.
• Regulations limit values, target values and corresponding UK Air Quality Strategy objectives, have been met for the majority of the pollutants covered in this report for Northern Ireland in 2024.
• Levels of polycyclic aromatic hydrocarbons (PAHs) - which is measured at four sites - have remained compliant with the regulations target since the measured exceedance recorded in 2016 at Derry Brandywell.  Against the stricter UK Air Quality Strategy objective for PAHs, three out of the four sites exceeded the objective in 2024.
• The report continues to compare monitored levels of air pollutants in Northern Ireland with the 2021 World Health Organisation (WHO) global air quality guideline levels.
• Along with the Department, district councils have a duty to carry out air quality monitoring, and where air quality falls below acceptable levels they are required to declare Air Quality Management Areas (AQMAs). In the 2024 reporting year there were 19 AQMAs in Northern Ireland.  
• The Department works closely with district councils and with other government departments to ensure that progress is being made towards meeting all air quality targets and objectives.

The Air Pollution in Northern Ireland 2024 Report can be accessed either through the DAERA website  or the Air quality in Northern Ireland website.