Stay updated with real-time air quality in Widnes, Halton 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
Widnes, Halton
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.42 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
5.63 μg/m³
0
55
155
255
425
605+
28.21 ppb
0
55
71
86
201
201+
0.67 ppb
0
36
76
186
605
1005+
23.18 ppb
0
54
101
361
1250
2050+
0.12 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Widnes, Halton
Widnes, Halton
Scroll To Air Quality MapLoading...
AQI 26
Good
2.43μg/m³
PM2.5
5.64μg/m³
PM10
28.04ppb
O3
0.67ppb
SO2
19.13ppb
NO2
0.12ppm
CO
AQI 23
Good
2.91μg/m³
PM2.5
6.38μg/m³
PM10
25.48ppb
O3
0.71ppb
SO2
11.42ppb
NO2
0.12ppm
CO
AQI 25
Good
1.80μg/m³
PM2.5
4.39μg/m³
PM10
27.00ppb
O3
0.67ppb
SO2
12.60ppb
NO2
0.12ppm
CO
AQI 25
Good
0.44μg/m³
PM2.5
2.07μg/m³
PM10
27.42ppb
O3
0.65ppb
SO2
11.48ppb
NO2
0.12ppm
CO
AQI 27
Good
2.11μg/m³
PM2.5
4.96μg/m³
PM10
29.09ppb
O3
0.61ppb
SO2
8.73ppb
NO2
0.12ppm
CO
AQI 26
Good
1.59μg/m³
PM2.5
4.00μg/m³
PM10
28.30ppb
O3
0.64ppb
SO2
10.40ppb
NO2
0.12ppm
CO
Air quality measurements for Halton, 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 Widnes, Halton is updated on an hourly basis.
The worst air quality in Widnes, Halton was recorded at 06:00:00 on 2026-02-12.
The best air quality in Widnes, Halton was recorded at 03:00:00 on 2026-02-13.
The real-time air quality index in Widnes, Halton is 26, currently categorized as Good.
The most common pollutant in Widnes, Halton is O3.
If the air quality in Widnes, Halton is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Widnes, Halton at present are 2.419 μg/m3.
The current PM10 levels in Widnes, Halton are 5.63 μg/m3.
The current carbon monoxide (CO) level in Widnes, Halton is 0.12 ppm.
The current sulfur dioxide (SO2) levels in Widnes, Halton are 0.673 ppb.
The current ozone (O3) levels at Widnes, Halton is 28.207 ppm.
The current nitrogen dioxide (NO2) levels at Widnes, Halton is 23.185 ppb.
All Rights Reserved © Ambee Inc. 2025