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)
38
Good
Greater London, UK
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.03 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
24.26 μg/m³
0
55
155
255
425
605+
21.56 ppb
0
55
71
86
201
201+
0.80 ppb
0
36
76
186
605
1005+
17.37 ppb
0
54
101
361
1250
2050+
0.80 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 44
Good
7.99μg/m³
PM2.5
19.81μg/m³
PM10
25.25ppb
O3
0.94ppb
SO2
19.09ppb
NO2
1.01ppm
CO
AQI 38
Good
6.55μg/m³
PM2.5
10.80μg/m³
PM10
23.37ppb
O3
1.42ppb
SO2
21.00ppb
NO2
1.01ppm
CO
AQI 33
Good
5.66μg/m³
PM2.5
10.39μg/m³
PM10
27.84ppb
O3
0.93ppb
SO2
16.11ppb
NO2
1.01ppm
CO
AQI 38
Good
6.85μg/m³
PM2.5
11.20μg/m³
PM10
25.57ppb
O3
0.84ppb
SO2
18.57ppb
NO2
1.01ppm
CO
AQI 27
Good
4.66μg/m³
PM2.5
9.23μg/m³
PM10
25.63ppb
O3
0.83ppb
SO2
18.57ppb
NO2
1.01ppm
CO
AQI 22
Good
3.79μg/m³
PM2.5
10.15μg/m³
PM10
20.69ppb
O3
0.62ppb
SO2
21.20ppb
NO2
1.01ppm
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 2026-02-12.
The best air quality in Greater London, UK was recorded at 11:00:00 on 2026-02-11.
The real-time air quality index in Greater London, UK is 38, 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 7.031 μg/m3.
The current PM10 levels in Greater London, UK are 24.259 μg/m3.
The current carbon monoxide (CO) level in Greater London, UK is 0.803 ppm.
The current sulfur dioxide (SO2) levels in Greater London, UK are 0.8 ppb.
The current ozone (O3) levels at Greater London, UK is 21.563 ppm.
The current nitrogen dioxide (NO2) levels at Greater London, UK is 17.367 ppb.
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