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)
33
Good
Leicestershire, UK
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.25 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.14 μg/m³
0
55
155
255
425
605+
34.14 ppb
0
55
71
86
201
201+
0.70 ppb
0
36
76
186
605
1005+
2.27 ppb
0
54
101
361
1250
2050+
0.12 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Leicestershire, UK
Leicestershire, UK
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| City | AQI | PM2.5 | PM10 | O3 | SO2 | NO2 | CO |
|---|---|---|---|---|---|---|---|
AQI 38
Good
6.88μg/m³
PM2.5
15.69μg/m³
PM10
33.20ppb
O3
0.65ppb
SO2
1.54ppb
NO2
0.12ppm
CO
AQI 38
Good
6.51μg/m³
PM2.5
18.29μg/m³
PM10
32.77ppb
O3
0.63ppb
SO2
3.10ppb
NO2
0.12ppm
CO
AQI 38
Good
6.66μg/m³
PM2.5
18.50μg/m³
PM10
33.16ppb
O3
0.58ppb
SO2
3.50ppb
NO2
0.12ppm
CO
AQI 44
Good
7.83μg/m³
PM2.5
23.43μg/m³
PM10
32.49ppb
O3
0.54ppb
SO2
3.47ppb
NO2
0.12ppm
CO
AQI 44
Good
8.21μg/m³
PM2.5
31.16μg/m³
PM10
32.17ppb
O3
0.60ppb
SO2
2.18ppb
NO2
0.12ppm
CO
AQI 33
Good
6.20μg/m³
PM2.5
19.05μg/m³
PM10
33.39ppb
O3
0.64ppb
SO2
3.16ppb
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 04:00:00 on 2026-07-13.
The best air quality in Leicestershire, UK was recorded at 03:00:00 on 2026-07-12.
The real-time air quality index in Leicestershire, UK is 33, currently categorized as Good.
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 6.249 μg/m3.
The current PM10 levels in Leicestershire, UK are 17.14 μg/m3.
The current carbon monoxide (CO) level in Leicestershire, UK is 0.12 ppm.
The current sulfur dioxide (SO2) levels in Leicestershire, UK are 0.696 ppb.
The current ozone (O3) levels at Leicestershire, UK is 34.143 ppm.
The current nitrogen dioxide (NO2) levels at Leicestershire, UK is 2.274 ppb.
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