Air Quality Index (AQI) in United Kingdom 🇬🇧
Live Air Quality Index (AQI) and PM2.5 Levels in United Kingdom
Currently, the Air Quality Index (AQI) in London, the capital of United Kingdom, is measured at a score of 25. According to the US EPA health standard, this air quality rating is categorized as Good. The current atmosphere in London is influenced by a PM2.5 (fine particulate matter) concentration of 4.5 µg/m³ and PM10 levels recorded at 7.2 µg/m³. Monitoring of gaseous pollutants shows Nitrogen Dioxide (NO2) at 13.0 µg/m³.
Beyond the primary urban hubs, atmospheric conditions and smog levels fluctuate across United Kingdom based on industrial output, traffic density, and local weather patterns. Real-time pollution data and respiratory health alerts are also being actively monitored in cities like Birmingham, Liverpool, Glasgow, Sheffield and Leeds. Tracking these air quality metrics is essential for residents nationwide to manage outdoor exposure and maintain respiratory safety during periods of increased particulate concentration.
United Kingdom Air Quality: Major Cities Index
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Pollution Monitor & AQI Forecast: United Kingdom Regions
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* Air Quality Index (AQI) data for United Kingdom is calculated using the US EPA standard. Information is processed from multiple monitoring stations detecting PM2.5, PM10, and gaseous pollutants to ensure accuracy for respiratory health planning.
Browse Air Quality in United Kingdom by cities in alphabetical order:
Frequently Asked Questions about Air Quality in United Kingdom
What is the air quality in United Kingdom right now?
The current AQI in London (capital of United Kingdom) is 25 — categorised as Good. Conditions vary across the country — see AQI for all cities for a complete picture.
Which city in United Kingdom has the worst air quality right now?
Right now, London has the highest AQI reading in United Kingdom at 25 (Good).
Which city in United Kingdom has the best air quality right now?
Glasgow currently has the lowest AQI in United Kingdom at 14 (Good).
What is the PM2.5 level in London today?
The PM2.5 (fine particulate) concentration in London, the capital of United Kingdom, is currently 4.5 µg/m³. The WHO 24-hour guideline is 15 µg/m³.
Is the air in United Kingdom safe to breathe today?
Most cities in United Kingdom currently report acceptable air-quality levels, though local conditions vary.
What are the cleanest cities in United Kingdom right now?
Top 5 cities in United Kingdom with the best (lowest) AQI right now:
- Glasgow: AQI 14 — Good
- Edinburgh: AQI 15 — Good
- Plymouth: AQI 15 — Good
- Newcastle upon Tyne: AQI 16 — Good
- Wolverhampton: AQI 16 — Good
What are the most polluted cities in United Kingdom right now?
Top 5 cities in United Kingdom with the worst (highest) AQI right now:
- London: AQI 25 — Good
- Bristol: AQI 23 — Good
- Kingston upon Hull: AQI 23 — Good
- Sheffield: AQI 22 — Good
- Islington: AQI 22 — Good
Air Quality Scales & Resources
Wondering what these AQI numbers mean for your health? Our worldwide air quality guide explains every level of the AQI, PM2.5, PM10, ozone, NO2, CO and SO2 scales, with practical health advice for each range.
→ Understanding Air Quality Levels: read the full guide