Air pollution is linked to around 1,500 premature deaths in Ireland each year. That figure stands even though Ireland met every EU air quality limit in 2025. The Environmental Protection Agency (EPA) set out the findings in its Air Quality in Ireland 2025 report, published in October 2026.
The bigger challenge is what comes next. Only 7% of monitoring stations met the World Health Organization (WHO) guideline for fine particulate matter (PM2.5). Stricter EU limits apply from 2030, and without further action, Ireland will not meet them at every station.
What the EPA’s Air Quality in Ireland 2025 Report Found
The report draws on data from 113 monitoring stations run by the EPA with local authorities and other bodies. Key findings include:
- No exceedances of current EU legal limits for any pollutant in 2025.
- Most pollutants have declined over the past 20 years.
- Around 1,500 premature deaths a year are linked to air pollution, based on European Environment Agency (EEA) estimates.
- Air quality is poorer in low-income areas. The EPA wants targeted support there to cut reliance on solid fuel.
Warren Phelan, EPA Programme Manager for Environmental Monitoring and Surveillance, said clean air is essential for good health. He added that further progress will need commitment from government, local authorities, businesses and communities.
Air Quality in Ireland Against 2030 Limits and WHO Guidelines
The EPA compared 2025 results against two tougher benchmarks: the new EU 2030 limits and the WHO air quality guidelines. The share of monitoring stations meeting each:
- 93% met the 2030 EU limit for PM2.5
- 72% met the 2030 EU limit for nitrogen dioxide (NO₂)
- 7% met the WHO guideline for PM2.5
- 25% met the WHO guideline for NO₂
The new limits more than halve the current ones for the main pollutants.
PM2.5 and Nitrogen Dioxide: Ireland’s Main Air Pollutants
The main source of fine particulate matter (PM2.5) is burning coal, peat and wood to heat homes. The particles are small enough to reach deep into the lungs and enter the bloodstream. Long-term exposure can contribute to stroke and heart disease. Levels peak in winter, when more homes light fires and stoves. Towns and villages are affected as well as cities.
The main source of nitrogen dioxide (NO₂) is petrol and diesel engines. It affects the lungs and breathing. Concentrations are highest in cities, where traffic is heaviest.
The EPA also tracks dioxins, which come from backyard and illegal burning of waste. It monitors them by testing cow’s milk. Levels in 2025 stayed below European limit values.
What Changes Under the New EU Ambient Air Quality Directive
The revised EU Ambient Air Quality Directive (EU) 2024/2881 must be transposed into Irish law by 11 December 2026. Its stricter limits apply from 1 January 2030. The directive aims to bring EU limits closer to WHO guidelines, as part of the EU’s zero pollution goal for 2050. For Ireland, the changes include:
- New pollutants: monitoring will expand to ultrafine particles, black carbon and ammonia.
- Supersites and hotspots: the EPA plans two supersites and a number of hotspot stations near pollution sources.
- Air Quality Road Maps: a local authority must prepare one if a 2030 limit is exceeded between 2026 and 2029.
- Air Quality Action Plans: required after 2030 wherever a limit is breached, to keep the exceedance as short as possible.
- Short-term action plans: triggered when alert thresholds are exceeded. Measures can include traffic restrictions and the temporary suspension of construction and dust-generating activities.
The EPA notes that alert threshold exceedances in Ireland were rare and isolated between 2021 and 2025.
Ireland’s Clean Air Strategy and Solid Fuel Regulations
Ireland’s first Clean Air Strategy, approved in 2023, commits the State to meet WHO guideline values by 2040. It also sets interim targets for 2026 and 2030. The Solid Fuel Regulations, introduced in 2022, restrict the sale of smoky fuels, including smoky coal, turf and wet wood. The EPA is calling on local authorities to:
- Keep enforcing the ban on the sale of smoky fuels
- Promote home energy retrofits and cleaner heating
- Support walking, cycling and public transport
Pat Byrne, Director of the EPA’s Office of Radiation Protection and Environmental Monitoring, said practical local action and sustained investment can deliver further gains. He pointed to cleaner heating, retrofitting, public transport and active travel. The EPA also wants Government funding for infrastructure, household supports and enforcement to continue.
What the 2030 Limits Mean for Businesses and Site Operators
Home heating and traffic drive most air pollution in Ireland, but industry and land use also play a part. Construction, quarrying, waste and industrial sites generate dust and emissions. Agriculture is the main source of ammonia, one of the pollutants the national network will now track.
Under the new directive, local authorities will have more data and more duties. If alert thresholds are exceeded, short-term action plans can pause dust-generating work. Sites with their own air quality monitoring data are in a stronger position to show their impact.
Reliable baseline data helps operators:
- Meet planning and licence conditions
- Respond to complaints with evidence
- Spot rising dust or emission levels before they become a compliance issue
Air Quality in Ireland: Check in Your Area
The EPA’s airquality.ie website shows real-time results, updated every hour. The Air Quality Index for Health (AQIH) ranks air quality on a scale of 1 to 10, from cleanest to most polluted. Each reading comes with health advice. Particulate matter is now reported hourly, and a new forecast predicts air quality 72 hours ahead.
Air Quality in Ireland Monitoring
As air quality in Ireland faces stricter 2030 limits, accurate site data carries more weight. At Southern Scientific, our environmental consultancy team helps businesses, developers and local authorities move from reactive crisis management to proactive protection.
We design environmental monitoring programmes covering air, noise, water and soil, from one-off assessments to long-term programmes. Our air quality monitoring checks dust levels and emissions against the standards that apply to your site. With over 30 years of experience and offices across Ireland, we give you clear data for compliance and reporting.
