Stay updated with real-time air quality in Greater London, UK featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
44
Good
Greater London, UK
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.63 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
26.37 μg/m³
0
55
155
255
425
605+
30.68 ppb
0
55
71
86
201
201+
0.34 ppb
0
36
76
186
605
1005+
7.10 ppb
0
54
101
361
1250
2050+
0.00 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Greater London, UK
Greater London, UK
Scroll To Air Quality MapLoading...
| No results found | |||||||
| City | AQI | PM2.5 | PM10 | O3 | SO2 | NO2 | CO |
|---|---|---|---|---|---|---|---|
AQI 27
Good
4.54μg/m³
PM2.5
10.18μg/m³
PM10
29.42ppb
O3
0.33ppb
SO2
4.45ppb
NO2
0.02ppm
CO
AQI 28
Good
2.30μg/m³
PM2.5
6.79μg/m³
PM10
30.26ppb
O3
0.27ppb
SO2
4.45ppb
NO2
0.02ppm
CO
AQI 29
Good
3.82μg/m³
PM2.5
10.21μg/m³
PM10
30.75ppb
O3
0.39ppb
SO2
7.74ppb
NO2
0.02ppm
CO
AQI 29
Good
5.14μg/m³
PM2.5
6.33μg/m³
PM10
31.10ppb
O3
0.34ppb
SO2
8.94ppb
NO2
0.03ppm
CO
AQI 28
Good
4.41μg/m³
PM2.5
7.93μg/m³
PM10
29.85ppb
O3
0.38ppb
SO2
6.54ppb
NO2
0.05ppm
CO
AQI 58
Moderate
13.37μg/m³
PM2.5
21.55μg/m³
PM10
16.40ppb
O3
1.24ppb
SO2
18.72ppb
NO2
0.18ppm
CO
Air quality measurements for Greater London, UK meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Greater London, UK is updated on an hourly basis.
The worst air quality in Greater London, UK was recorded at 11:00:00 on 2025-12-27.
The best air quality in Greater London, UK was recorded at 06:00:00 on 2025-12-28.
The real-time air quality index in Greater London, UK is 44, currently categorized as Good.
The most common pollutant in Greater London, UK is PM2.5.
If the air quality in Greater London, UK is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Greater London, UK at present are 7.628 μg/m3.
The current PM10 levels in Greater London, UK are 26.371 μg/m3.
The current carbon monoxide (CO) level in Greater London, UK is 0.001 ppm.
The current sulfur dioxide (SO2) levels in Greater London, UK are 0.437 ppb.
The current ozone (O3) levels at Greater London, UK is 30.703 ppm.
The current nitrogen dioxide (NO2) levels at Greater London, UK is 7.104 ppb.
All Rights Reserved © Ambee Inc. 2025