Stay updated with real-time air quality in Leicestershire, 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)
49
Good
Leicestershire, UK
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.11 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
16.22 μg/m³
0
55
155
255
425
605+
20.35 ppb
0
55
71
86
201
201+
0.77 ppb
0
36
76
186
605
1005+
10.50 ppb
0
54
101
361
1250
2050+
0.11 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Leicestershire, UK
Leicestershire, UK
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| City | AQI | PM2.5 | PM10 | O3 | SO2 | NO2 | CO |
|---|---|---|---|---|---|---|---|
AQI 58
Moderate
12.68μg/m³
PM2.5
19.48μg/m³
PM10
14.65ppb
O3
0.63ppb
SO2
11.09ppb
NO2
0.08ppm
CO
AQI 58
Moderate
13.25μg/m³
PM2.5
23.65μg/m³
PM10
14.22ppb
O3
0.62ppb
SO2
12.02ppb
NO2
0.08ppm
CO
AQI 58
Moderate
12.81μg/m³
PM2.5
25.13μg/m³
PM10
13.27ppb
O3
0.66ppb
SO2
13.70ppb
NO2
0.09ppm
CO
AQI 54
Moderate
10.69μg/m³
PM2.5
22.64μg/m³
PM10
18.37ppb
O3
1.78ppb
SO2
13.61ppb
NO2
0.05ppm
CO
AQI 52
Moderate
10.49μg/m³
PM2.5
31.92μg/m³
PM10
20.01ppb
O3
0.55ppb
SO2
9.88ppb
NO2
0.05ppm
CO
AQI 52
Moderate
10.24μg/m³
PM2.5
20.94μg/m³
PM10
19.85ppb
O3
0.76ppb
SO2
12.43ppb
NO2
0.09ppm
CO
Air quality measurements for Leicestershire, 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 Leicestershire, UK is updated on an hourly basis.
The worst air quality in Leicestershire, UK was recorded at 01:00:00 on 2025-11-07.
The best air quality in Leicestershire, UK was recorded at 09:00:00 on 2025-11-07.
The real-time air quality index in Leicestershire, UK is 52, currently categorized as Moderate.
The most common pollutant in Leicestershire, UK is PM2.5.
If the air quality in Leicestershire, UK is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Leicestershire, UK at present are 9.575 μg/m3.
The current PM10 levels in Leicestershire, UK are 18.656 μg/m3.
The current carbon monoxide (CO) level in Leicestershire, UK is 0.07 ppm.
The current sulfur dioxide (SO2) levels in Leicestershire, UK are 0.765 ppb.
The current ozone (O3) levels at Leicestershire, UK is 19.595 ppm.
The current nitrogen dioxide (NO2) levels at Leicestershire, UK is 13.094 ppb.
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