Real-time air quality index in Greater London, UK today
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)
44
Good
Greater London, UK
Last updated: ... (Local time)
Common air pollutants in Greater London, UK
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
7.63 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
26.37 μg/m³
0
55
155
255
425
605+
Ozone (O3)
30.70 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.46 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
7.10 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.00 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Greater London, UK
Greater London, UK
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Greater London, UK air quality map: Real-time AQI near you
Air quality in cities of Greater London, UK
| No results found | |||||||
| City | AQI | PM2.5 | PM10 | O3 | SO2 | NO2 | CO |
|---|---|---|---|---|---|---|---|
Air quality in nearby states
Hertfordshire, UK
AQI 28
Good
3.50μg/m³
PM2.5
7.58μg/m³
PM10
30.02ppb
O3
0.33ppb
SO2
5.34ppb
NO2
0.02ppm
CO
Thurrock, UK
AQI 29
Good
2.06μg/m³
PM2.5
6.84μg/m³
PM10
31.27ppb
O3
0.21ppb
SO2
3.75ppb
NO2
0.02ppm
CO
Surrey, UK
AQI 28
Good
4.61μg/m³
PM2.5
8.51μg/m³
PM10
29.57ppb
O3
0.36ppb
SO2
6.86ppb
NO2
0.02ppm
CO
Windsor and Maidenhead, UK
AQI 27
Good
4.70μg/m³
PM2.5
15.65μg/m³
PM10
29.32ppb
O3
0.34ppb
SO2
11.26ppb
NO2
0.03ppm
CO
Bracknell Forest, UK
AQI 27
Good
2.82μg/m³
PM2.5
8.66μg/m³
PM10
29.20ppb
O3
0.35ppb
SO2
5.07ppb
NO2
0.05ppm
CO
Halton, UK
AQI 54
Moderate
10.73μg/m³
PM2.5
20.38μg/m³
PM10
18.85ppb
O3
1.03ppb
SO2
16.27ppb
NO2
0.19ppm
CO
How accurate is Greater London, UK air quality data?
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
Frequently asked questions
How frequently is the air quality data for Greater London, UK updated?
Air quality data for Greater London, UK is updated on an hourly basis.
When did Greater London, UK experience the worst air quality in the last 24 hours?
The worst air quality in Greater London, UK was recorded at 08:00:00 on 2025-12-27.
When did Greater London, UK have its best air quality in the last 24 hours?
The best air quality in Greater London, UK was recorded at 06:00:00 on 2025-12-28.
What is the real-time air quality index for Greater London, UK?
The real-time air quality index in Greater London, UK is 44, currently categorized as Good.
Which pollutant is found most often in Greater London, UK?
The most common pollutant in Greater London, UK is PM2.5.
What can I do if the air quality in Greater London, UK is poor?
If the air quality in Greater London, UK is poor, limit outdoor activities and use a mask to safeguard your health.
What are the current PM2.5 levels in Greater London, UK?
The measured PM2.5 levels in Greater London, UK at present are 7.628 μg/m3.
What are the current PM10 levels at Greater London, UK?
The current PM10 levels in Greater London, UK are 26.371 μg/m3.
What are the current carbon monoxide (CO) levels at Greater London, UK?
The current carbon monoxide (CO) level in Greater London, UK is 0.001 ppm.
What are the current sulfur dioxide (SO2) levels at Greater London, UK?
The current sulfur dioxide (SO2) levels in Greater London, UK are 0.459 ppb.
What are the current ozone (O3) levels at Greater London, UK?
The current ozone (O3) levels at Greater London, UK is 30.704 ppm.
What are the current nitrogen dioxide (NO2) levels at Greater London, UK?
The current nitrogen dioxide (NO2) levels at Greater London, UK is 7.104 ppb.
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