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Air quality · United Kingdom

Belfast Air Quality (AQI) Now

25 Fair
European Air Quality Index
PM2.5
3.3µg/m³WHO limit 15
PM10
6.9µg/m³WHO limit 45
NO₂
2.2µg/m³
O₃
69µg/m³
Desert dust
0µg/m³
UV index
0.0
US AQI
33

Updated: · Source: Copernicus CAMS · Open-Meteo

Air quality in Belfast is fair right now: European Air Quality Index 25. Fine particulate matter (PM2.5) is 3.3 µg/m³, below the WHO guideline. Fine for outdoor activities; very sensitive people may reduce prolonged strenuous exercise. Pollution is expected to peak around 23:00 over the next 48 hours (index 32, fair).

Belfast 48-hour air quality forecast

08:00: 1808:0009:00: 1810:00: 1911:00: 2012:00: 2213:00: 2514:00: 2614:0015:00: 2716:00: 2617:00: 2518:00: 2419:00: 2120:00: 2120:0021:00: 2022:00: 2023:00: 1900:00: 1901:00: 1802:00: 1802:0003:00: 1704:00: 1705:00: 1606:00: 1607:00: 1908:00: 2008:0009:00: 1710:00: 1911:00: 2412:00: 2513:00: 2614:00: 2614:0015:00: 2816:00: 2817:00: 2418:00: 2219:00: 2320:00: 2720:0021:00: 2922:00: 3023:00: 32

Air quality near Belfast

Cleanest to most polluted.

Frequently asked questions

Is Belfast polluted today?
Air quality in Belfast is fair right now: European Air Quality Index 25. Fine for outdoor activities; very sensitive people may reduce prolonged strenuous exercise.
Is it safe to exercise outdoors in Belfast today?
Yes, air quality is fair right now; fine for outdoor exercise.
How is the air quality index calculated?
The European Air Quality Index is set by the worst of PM2.5, PM10, nitrogen dioxide, ozone and sulphur dioxide: 0–20 good, 20–40 fair, 40–60 moderate, 60–80 poor, 80–100 very poor, above 100 extremely poor.

Values are Copernicus Atmosphere Monitoring Service (CAMS) model forecasts and may differ from local monitoring stations.

Belfast air quality: details

Pollutants and recent days

Nitrogen dioxide (NO₂) is 2.2 µg/m³ and ozone (O₃) 69 µg/m³; WHO guideline values are 25 (24 h) and 100 µg/m³ (8 h).