Stay updated with real-time air quality in London, Greater London 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
London, Greater London
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+
19.62 ppb
0
55
71
86
201
201+
0.81 ppb
0
36
76
186
605
1005+
16.60 ppb
0
54
101
361
1250
2050+
0.53 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
London, Greater London
London, Greater London
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AQI 33
Good
5.70μg/m³
PM2.5
21.15μg/m³
PM10
26.62ppb
O3
0.74ppb
SO2
17.43ppb
NO2
0.63ppm
CO
AQI 52
Moderate
10.38μg/m³
PM2.5
31.82μg/m³
PM10
22.93ppb
O3
0.78ppb
SO2
18.36ppb
NO2
0.63ppm
CO
AQI 33
Good
5.84μg/m³
PM2.5
21.68μg/m³
PM10
26.46ppb
O3
0.75ppb
SO2
17.58ppb
NO2
0.63ppm
CO
AQI 33
Good
6.01μg/m³
PM2.5
9.20μg/m³
PM10
24.68ppb
O3
0.87ppb
SO2
11.36ppb
NO2
0.63ppm
CO
AQI 49
Good
9.06μg/m³
PM2.5
11.22μg/m³
PM10
21.24ppb
O3
0.92ppb
SO2
9.22ppb
NO2
0.63ppm
CO
AQI 27
Good
5.01μg/m³
PM2.5
10.69μg/m³
PM10
22.36ppb
O3
0.88ppb
SO2
19.55ppb
NO2
0.63ppm
CO
Air quality data and pollutant measurements for Greater London, UK adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for London, Greater London is updated every hour.
The worst air quality in London, Greater London in the last 24 hours was observed at 11:00:00 on 2026-02-11.
In the last 24 hrs, the best air quality in London, Greater London was observed at 02:00:00 on 2026-02-12.
The current air quality in London, Greater London is 38, categorized as Good based on real-time data.
The most common pollutant in London, Greater London is PM2.5.
If the air quality in London, Greater London is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at London, Greater London is 7.031 μg/m3.
The current PM10 concentration at London, Greater London is 24.259 μg/m3.
The current carbon monoxide (CO) concentration at London, Greater London is 0.531 ppm.
The current sulfur dioxide (SO2) concentration at London, Greater London is 0.809 ppb.
The current ozone (O3) concentration at London, Greater London is 19.622 ppm.
The current nitrogen dioxide (NO2) concentration at London, Greater London is 16.597 ppb.
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