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
8.75 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.95 μg/m³
0
55
155
255
425
605+
25.71 ppb
0
55
71
86
201
201+
0.55 ppb
0
36
76
186
605
1005+
8.17 ppb
0
54
101
361
1250
2050+
0.00 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Greater London, UK
Greater London, UK
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| City | AQI | PM2.5 | PM10 | O3 | SO2 | NO2 | CO |
|---|---|---|---|---|---|---|---|
AQI 49
Good
9.23μg/m³
PM2.5
21.79μg/m³
PM10
27.73ppb
O3
0.54ppb
SO2
6.76ppb
NO2
0.01ppm
CO
AQI 38
Good
7.18μg/m³
PM2.5
13.66μg/m³
PM10
26.74ppb
O3
0.53ppb
SO2
6.96ppb
NO2
0.01ppm
CO
AQI 44
Good
8.37μg/m³
PM2.5
18.40μg/m³
PM10
28.35ppb
O3
0.55ppb
SO2
5.82ppb
NO2
0.01ppm
CO
AQI 49
Good
9.08μg/m³
PM2.5
23.89μg/m³
PM10
26.54ppb
O3
0.54ppb
SO2
7.07ppb
NO2
0.01ppm
CO
AQI 49
Good
8.94μg/m³
PM2.5
18.62μg/m³
PM10
28.89ppb
O3
0.60ppb
SO2
4.54ppb
NO2
0.01ppm
CO
AQI 52
Moderate
9.84μg/m³
PM2.5
24.73μg/m³
PM10
25.11ppb
O3
0.64ppb
SO2
10.71ppb
NO2
0.04ppm
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 2026-07-10.
The best air quality in Greater London, UK was recorded at 07:00:00 on 2026-07-11.
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 8.749 μg/m3.
The current PM10 levels in Greater London, UK are 15.953 μg/m3.
The current carbon monoxide (CO) level in Greater London, UK is 0.003 ppm.
The current sulfur dioxide (SO2) levels in Greater London, UK are 0.545 ppb.
The current ozone (O3) levels at Greater London, UK is 25.713 ppm.
The current nitrogen dioxide (NO2) levels at Greater London, UK is 8.169 ppb.
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