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)
44
Good
London, Greater London
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
8.47 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
31.16 μg/m³
0
55
155
255
425
605+
34.13 ppb
0
55
71
86
201
201+
1.17 ppb
0
36
76
186
605
1005+
7.18 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
London, Greater London
London, Greater London
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AQI 38
Good
6.79μg/m³
PM2.5
22.68μg/m³
PM10
31.77ppb
O3
0.89ppb
SO2
4.57ppb
NO2
0.23ppm
CO
AQI 38
Good
6.96μg/m³
PM2.5
15.93μg/m³
PM10
34.28ppb
O3
0.88ppb
SO2
8.92ppb
NO2
0.23ppm
CO
AQI 38
Good
7.04μg/m³
PM2.5
21.70μg/m³
PM10
30.94ppb
O3
0.89ppb
SO2
4.71ppb
NO2
0.23ppm
CO
AQI 38
Good
7.07μg/m³
PM2.5
13.81μg/m³
PM10
35.31ppb
O3
0.85ppb
SO2
2.20ppb
NO2
0.23ppm
CO
AQI 38
Good
6.57μg/m³
PM2.5
19.36μg/m³
PM10
29.81ppb
O3
0.84ppb
SO2
6.75ppb
NO2
0.23ppm
CO
AQI 33
Good
5.88μg/m³
PM2.5
12.60μg/m³
PM10
32.81ppb
O3
0.85ppb
SO2
3.75ppb
NO2
0.23ppm
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 2025-06-14.
In the last 24 hrs, the best air quality in London, Greater London was observed at 02:00:00 on 2025-06-15.
The current air quality in London, Greater London is 44, 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 8.474 μg/m3.
The current PM10 concentration at London, Greater London is 31.156 μg/m3.
The current carbon monoxide (CO) concentration at London, Greater London is 0.235 ppm.
The current sulfur dioxide (SO2) concentration at London, Greater London is 1.167 ppb.
The current ozone (O3) concentration at London, Greater London is 34.13 ppm.
The current nitrogen dioxide (NO2) concentration at London, Greater London is 7.179 ppb.
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