London, Greater London live air quality index now
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)
33
Good
London, Greater London
Last updated: ... (Local time)
Major air pollutants in London, Greater London
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
6.00 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
24.65 μg/m³
0
55
155
255
425
605+
Ozone (O3)
23.03 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.38 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
3.07 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.20 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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Air quality in nearby cities
Worcester Park, Surrey
AQI 38
Good
7.37μg/m³
PM2.5
14.09μg/m³
PM10
23.08ppb
O3
0.36ppb
SO2
5.29ppb
NO2
0.00ppm
CO
Buckhurst Hill, Essex
AQI 22
Good
4.23μg/m³
PM2.5
11.67μg/m³
PM10
24.49ppb
O3
0.35ppb
SO2
9.88ppb
NO2
0.00ppm
CO
Ewell, Surrey
AQI 38
Good
7.29μg/m³
PM2.5
13.63μg/m³
PM10
23.16ppb
O3
0.36ppb
SO2
5.97ppb
NO2
0.00ppm
CO
Borehamwood, Hertfordshire
AQI 23
Good
3.38μg/m³
PM2.5
5.72μg/m³
PM10
24.89ppb
O3
0.37ppb
SO2
4.90ppb
NO2
0.00ppm
CO
Chigwell, Essex
AQI 22
Good
4.14μg/m³
PM2.5
14.48μg/m³
PM10
20.73ppb
O3
0.35ppb
SO2
5.97ppb
NO2
0.01ppm
CO
West Molesey, Surrey
AQI 21
Good
3.05μg/m³
PM2.5
7.46μg/m³
PM10
23.44ppb
O3
0.37ppb
SO2
9.34ppb
NO2
0.01ppm
CO
How accurate is Greater London, UK air quality data?
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
Frequently asked questions
How often is the air quality data for London, Greater London updated?
The air quality for London, Greater London is updated every hour.
When was the worst air quality at London, Greater London in the last 24 hrs?
The worst air quality in London, Greater London in the last 24 hours was observed at 11:00:00 on 2025-09-16.
When was the best air quality at London, Greater London in the last 24 hrs?
In the last 24 hrs, the best air quality in London, Greater London was observed at 12:00:00 on 2025-09-17.
What is the current air quality in London, Greater London?
The current air quality in London, Greater London is 33, categorized as Good based on real-time data.
What pollutant is the most common in London, Greater London?
The most common pollutant in London, Greater London is PM2.5.
What should I do if the air quality in London, Greater London is poor?
If the air quality in London, Greater London is poor, consider staying indoors and wearing a mask to protect yourself.
What is the current concentration of PM2.5 in London, Greater London?
The current PM2.5 concentration at London, Greater London is 5.741 μg/m3.
What is the current concentration of PM10 in London, Greater London?
The current PM10 concentration at London, Greater London is 20.547 μg/m3.
What is the current concentration of carbon monoxide (CO) in London, Greater London?
The current carbon monoxide (CO) concentration at London, Greater London is 0 ppm.
What is the current concentration of sulfur dioxide (SO2) in London, Greater London?
The current sulfur dioxide (SO2) concentration at London, Greater London is 0.335 ppb.
What is the current concentration of ozone (O3) in London, Greater London?
The current ozone (O3) concentration at London, Greater London is 22.267 ppm.
What is the current concentration of nitrogen dioxide (NO2) in London, Greater London?
The current nitrogen dioxide (NO2) concentration at London, Greater London is 9.384 ppb.
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