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)
58
Moderate
Greater London, UK
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
12.88 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
51.16 μg/m³
0
55
155
255
425
605+
25.63 ppb
0
55
71
86
201
201+
0.55 ppb
0
36
76
186
605
1005+
9.44 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
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| City | AQI | PM2.5 | PM10 | O3 | SO2 | NO2 | CO |
|---|---|---|---|---|---|---|---|
AQI 44
Good
7.94μg/m³
PM2.5
25.12μg/m³
PM10
29.13ppb
O3
0.52ppb
SO2
5.69ppb
NO2
0.01ppm
CO
AQI 44
Good
7.83μg/m³
PM2.5
15.48μg/m³
PM10
26.43ppb
O3
1.00ppb
SO2
6.14ppb
NO2
0.02ppm
CO
AQI 49
Good
8.56μg/m³
PM2.5
19.34μg/m³
PM10
29.03ppb
O3
0.54ppb
SO2
8.01ppb
NO2
0.01ppm
CO
AQI 38
Good
6.75μg/m³
PM2.5
21.24μg/m³
PM10
29.64ppb
O3
0.52ppb
SO2
5.75ppb
NO2
0.02ppm
CO
AQI 44
Good
8.25μg/m³
PM2.5
20.37μg/m³
PM10
31.81ppb
O3
0.44ppb
SO2
6.43ppb
NO2
0.02ppm
CO
AQI 27
Good
4.34μg/m³
PM2.5
8.57μg/m³
PM10
29.04ppb
O3
0.62ppb
SO2
4.95ppb
NO2
0.08ppm
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 12:00:00 on 2025-12-07.
The best air quality in Greater London, UK was recorded at 07:00:00 on 2025-12-06.
The real-time air quality index in Greater London, UK is 58, currently categorized as Moderate.
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 12.883 μg/m3.
The current PM10 levels in Greater London, UK are 51.259 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 0.553 ppb.
The current ozone (O3) levels at Greater London, UK is 25.625 ppm.
The current nitrogen dioxide (NO2) levels at Greater London, UK is 9.328 ppb.
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