Air quality · United Kingdom
Cardiff Air Quality (AQI) Now
25
Fair
European Air Quality Index
European Air Quality Index
- PM2.5
- 1.5µg/m³WHO limit 15
- PM10
- 2.0µg/m³WHO limit 45
- NO₂
- 2.4µg/m³
- O₃
- 70µg/m³
- Desert dust
- 0µg/m³
- UV index
- 0.0
- US AQI
- 28
Updated: · Source: Copernicus CAMS · Open-Meteo
Air quality in Cardiff is fair right now: European Air Quality Index 25. Fine particulate matter (PM2.5) is 1.5 µg/m³, below the WHO guideline. Fine for outdoor activities; very sensitive people may reduce prolonged strenuous exercise. Pollution is expected to peak around 12:00 over the next 48 hours (index 25, fair).
Cardiff 48-hour air quality forecast
Cardiff pollen count
Pollen grains per m³ (Copernicus forecast).
- Alder
- 0None
- Birch
- 0None
- Grass
- 0None
- Mugwort
- 0None
- Olive
- 0None
- Ragweed
- 0None
Air quality near Cardiff
Cleanest to most polluted.
Frequently asked questions
- Is Cardiff polluted today?
- Air quality in Cardiff 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 Cardiff 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.
Cardiff air quality: details
Pollutants and recent days
Nitrogen dioxide (NO₂) is 2.4 µg/m³ and ozone (O₃) 70 µg/m³; WHO guideline values are 25 (24 h) and 100 µg/m³ (8 h).