Stay updated with real-time air quality in Cheshire West and Chester, 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)
23
Good
Cheshire West and Chester, UK
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.46 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.52 μg/m³
0
55
155
255
425
605+
25.03 ppb
0
55
71
86
201
201+
0.71 ppb
0
36
76
186
605
1005+
3.18 ppb
0
54
101
361
1250
2050+
0.12 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Cheshire West and Chester, UK
Cheshire West and Chester, UK
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| City | AQI | PM2.5 | PM10 | O3 | SO2 | NO2 | CO |
|---|---|---|---|---|---|---|---|
AQI 18
Good
3.19μg/m³
PM2.5
5.87μg/m³
PM10
19.17ppb
O3
0.76ppb
SO2
5.50ppb
NO2
0.16ppm
CO
AQI 25
Good
4.08μg/m³
PM2.5
12.16μg/m³
PM10
27.14ppb
O3
0.76ppb
SO2
11.02ppb
NO2
0.16ppm
CO
AQI 19
Good
3.32μg/m³
PM2.5
6.97μg/m³
PM10
20.18ppb
O3
0.76ppb
SO2
6.76ppb
NO2
0.16ppm
CO
AQI 18
Good
3.17μg/m³
PM2.5
7.00μg/m³
PM10
19.14ppb
O3
0.76ppb
SO2
9.62ppb
NO2
0.16ppm
CO
AQI 31
Good
3.15μg/m³
PM2.5
7.18μg/m³
PM10
34.33ppb
O3
0.76ppb
SO2
3.33ppb
NO2
0.16ppm
CO
AQI 28
Good
3.71μg/m³
PM2.5
8.84μg/m³
PM10
30.17ppb
O3
0.76ppb
SO2
6.75ppb
NO2
0.16ppm
CO
Air quality measurements for Cheshire West and Chester, 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 Cheshire West and Chester, UK is updated on an hourly basis.
The worst air quality in Cheshire West and Chester, UK was recorded at 04:00:00 on 2026-05-13.
The best air quality in Cheshire West and Chester, UK was recorded at 07:00:00 on 2026-05-14.
The real-time air quality index in Cheshire West and Chester, UK is 22, currently categorized as Good.
The most common pollutant in Cheshire West and Chester, UK is O3.
If the air quality in Cheshire West and Chester, UK is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Cheshire West and Chester, UK at present are 3.57 μg/m3.
The current PM10 levels in Cheshire West and Chester, UK are 9.065 μg/m3.
The current carbon monoxide (CO) level in Cheshire West and Chester, UK is 0.157 ppm.
The current sulfur dioxide (SO2) levels in Cheshire West and Chester, UK are 0.763 ppb.
The current ozone (O3) levels at Cheshire West and Chester, UK is 23.909 ppm.
The current nitrogen dioxide (NO2) levels at Cheshire West and Chester, UK is 8.15 ppb.
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