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)
26
Good
Leicestershire, UK
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.25 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
7.80 μg/m³
0
55
155
255
425
605+
27.53 ppb
0
55
71
86
201
201+
0.68 ppb
0
36
76
186
605
1005+
7.12 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 24
Good
3.80μg/m³
PM2.5
7.02μg/m³
PM10
26.40ppb
O3
0.75ppb
SO2
10.66ppb
NO2
0.12ppm
CO
AQI 24
Good
3.34μg/m³
PM2.5
8.42μg/m³
PM10
26.44ppb
O3
0.75ppb
SO2
7.10ppb
NO2
0.12ppm
CO
AQI 25
Good
2.96μg/m³
PM2.5
7.88μg/m³
PM10
26.71ppb
O3
0.73ppb
SO2
6.36ppb
NO2
0.12ppm
CO
AQI 23
Good
3.82μg/m³
PM2.5
9.99μg/m³
PM10
24.89ppb
O3
0.82ppb
SO2
6.28ppb
NO2
0.12ppm
CO
AQI 23
Good
4.44μg/m³
PM2.5
16.08μg/m³
PM10
25.34ppb
O3
0.69ppb
SO2
4.81ppb
NO2
0.12ppm
CO
AQI 24
Good
4.23μg/m³
PM2.5
10.90μg/m³
PM10
25.53ppb
O3
0.69ppb
SO2
6.21ppb
NO2
0.12ppm
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 02:00:00 on 2026-05-13.
The best air quality in Leicestershire, UK was recorded at 05:00:00 on 2026-05-14.
The real-time air quality index in Leicestershire, UK is 24, currently categorized as Good.
The most common pollutant in Leicestershire, UK is O3.
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 3.206 μg/m3.
The current PM10 levels in Leicestershire, UK are 8.044 μg/m3.
The current carbon monoxide (CO) level in Leicestershire, UK is 0.118 ppm.
The current sulfur dioxide (SO2) levels in Leicestershire, UK are 0.692 ppb.
The current ozone (O3) levels at Leicestershire, UK is 25.635 ppm.
The current nitrogen dioxide (NO2) levels at Leicestershire, UK is 6.143 ppb.
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