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)
25
Good
Cheshire West and Chester, UK
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.10 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
9.03 μg/m³
0
55
155
255
425
605+
26.91 ppb
0
55
71
86
201
201+
0.61 ppb
0
36
76
186
605
1005+
3.34 ppb
0
54
101
361
1250
2050+
0.10 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Cheshire West and Chester, UK
Cheshire West and Chester, UK
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| City | AQI | PM2.5 | PM10 | O3 | SO2 | NO2 | CO |
|---|---|---|---|---|---|---|---|
AQI 23
Good
3.73μg/m³
PM2.5
7.36μg/m³
PM10
25.40ppb
O3
0.65ppb
SO2
2.82ppb
NO2
0.10ppm
CO
AQI 26
Good
3.46μg/m³
PM2.5
10.73μg/m³
PM10
28.15ppb
O3
0.63ppb
SO2
5.27ppb
NO2
0.10ppm
CO
AQI 25
Good
4.19μg/m³
PM2.5
7.76μg/m³
PM10
27.06ppb
O3
0.67ppb
SO2
3.74ppb
NO2
0.09ppm
CO
AQI 23
Good
4.08μg/m³
PM2.5
8.06μg/m³
PM10
25.07ppb
O3
0.65ppb
SO2
5.88ppb
NO2
0.09ppm
CO
AQI 22
Good
4.14μg/m³
PM2.5
8.33μg/m³
PM10
20.79ppb
O3
0.58ppb
SO2
2.62ppb
NO2
0.08ppm
CO
AQI 25
Good
4.45μg/m³
PM2.5
9.26μg/m³
PM10
26.93ppb
O3
0.55ppb
SO2
2.32ppb
NO2
0.09ppm
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 10:00:00 on 2025-12-06.
The best air quality in Cheshire West and Chester, UK was recorded at 01:00:00 on 2025-12-07.
The real-time air quality index in Cheshire West and Chester, UK is 25, 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 4.096 μg/m3.
The current PM10 levels in Cheshire West and Chester, UK are 9.034 μg/m3.
The current carbon monoxide (CO) level in Cheshire West and Chester, UK is 0.097 ppm.
The current sulfur dioxide (SO2) levels in Cheshire West and Chester, UK are 0.614 ppb.
The current ozone (O3) levels at Cheshire West and Chester, UK is 26.914 ppm.
The current nitrogen dioxide (NO2) levels at Cheshire West and Chester, UK is 3.338 ppb.
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