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
13.28 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
41.53 μg/m³
0
55
155
255
425
605+
18.54 ppb
0
55
71
86
201
201+
0.69 ppb
0
36
76
186
605
1005+
11.18 ppb
0
54
101
361
1250
2050+
0.00 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Greater London, UK
Greater London, UK
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| City | AQI | PM2.5 | PM10 | O3 | SO2 | NO2 | CO |
|---|---|---|---|---|---|---|---|
AQI 49
Good
9.37μg/m³
PM2.5
22.08μg/m³
PM10
19.87ppb
O3
1.27ppb
SO2
11.73ppb
NO2
0.02ppm
CO
AQI 49
Good
9.38μg/m³
PM2.5
26.22μg/m³
PM10
22.80ppb
O3
0.95ppb
SO2
9.09ppb
NO2
0.03ppm
CO
AQI 44
Good
7.82μg/m³
PM2.5
14.62μg/m³
PM10
24.38ppb
O3
0.61ppb
SO2
10.81ppb
NO2
0.02ppm
CO
AQI 38
Good
7.16μg/m³
PM2.5
14.19μg/m³
PM10
25.38ppb
O3
0.71ppb
SO2
6.97ppb
NO2
0.03ppm
CO
AQI 38
Good
7.41μg/m³
PM2.5
13.41μg/m³
PM10
22.05ppb
O3
0.64ppb
SO2
7.23ppb
NO2
0.03ppm
CO
AQI 56
Moderate
11.82μg/m³
PM2.5
20.64μg/m³
PM10
20.44ppb
O3
0.76ppb
SO2
31.12ppb
NO2
0.15ppm
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 09:00:00 on 2025-11-07.
The best air quality in Greater London, UK was recorded at 11:00:00 on 2025-11-07.
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 13.276 μg/m3.
The current PM10 levels in Greater London, UK are 41.911 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 0.762 ppb.
The current ozone (O3) levels at Greater London, UK is 18.723 ppm.
The current nitrogen dioxide (NO2) levels at Greater London, UK is 10.921 ppb.
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