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)
49
Good
Greater London, UK
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.78 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
22.72 μg/m³
0
55
155
255
425
605+
44.47 ppb
0
55
71
86
201
201+
0.67 ppb
0
36
76
186
605
1005+
15.32 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
9.33μg/m³
PM2.5
29.87μg/m³
PM10
42.86ppb
O3
0.64ppb
SO2
12.47ppb
NO2
0.01ppm
CO
AQI 56
Moderate
12.02μg/m³
PM2.5
25.95μg/m³
PM10
53.89ppb
O3
1.03ppb
SO2
14.99ppb
NO2
0.02ppm
CO
AQI 49
Good
8.96μg/m³
PM2.5
24.70μg/m³
PM10
50.02ppb
O3
0.66ppb
SO2
11.25ppb
NO2
0.01ppm
CO
AQI 44
Good
8.28μg/m³
PM2.5
26.23μg/m³
PM10
40.61ppb
O3
0.65ppb
SO2
7.38ppb
NO2
0.01ppm
CO
AQI 44
Good
7.79μg/m³
PM2.5
26.33μg/m³
PM10
40.08ppb
O3
0.65ppb
SO2
7.37ppb
NO2
0.02ppm
CO
AQI 27
Good
4.96μg/m³
PM2.5
12.63μg/m³
PM10
24.34ppb
O3
0.79ppb
SO2
5.35ppb
NO2
0.06ppm
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 2026-08-14.
The best air quality in Greater London, UK was recorded at 05:00:00 on 2026-08-13.
The real-time air quality index in Greater London, UK is 49, 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 8.779 μg/m3.
The current PM10 levels in Greater London, UK are 22.719 μg/m3.
The current carbon monoxide (CO) level in Greater London, UK is 0.004 ppm.
The current sulfur dioxide (SO2) levels in Greater London, UK are 0.672 ppb.
The current ozone (O3) levels at Greater London, UK is 44.469 ppm.
The current nitrogen dioxide (NO2) levels at Greater London, UK is 15.322 ppb.
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