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)
22
Good
Widnes, Halton
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.62 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.45 μg/m³
0
55
155
255
425
605+
21.25 ppb
0
55
71
86
201
201+
0.71 ppb
0
36
76
186
605
1005+
5.23 ppb
0
54
101
361
1250
2050+
0.08 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Widnes, Halton
Widnes, Halton
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AQI 90
Moderate
11.84μg/m³
PM2.5
22.01μg/m³
PM10
66.94ppb
O3
0.81ppb
SO2
18.84ppb
NO2
0.09ppm
CO
AQI 84
Moderate
11.59μg/m³
PM2.5
24.19μg/m³
PM10
64.91ppb
O3
0.99ppb
SO2
14.49ppb
NO2
0.09ppm
CO
AQI 84
Moderate
8.91μg/m³
PM2.5
21.71μg/m³
PM10
65.37ppb
O3
0.90ppb
SO2
23.21ppb
NO2
0.09ppm
CO
AQI 84
Moderate
4.64μg/m³
PM2.5
21.02μg/m³
PM10
64.77ppb
O3
0.86ppb
SO2
34.72ppb
NO2
0.09ppm
CO
AQI 90
Moderate
10.21μg/m³
PM2.5
21.88μg/m³
PM10
67.09ppb
O3
0.79ppb
SO2
13.23ppb
NO2
0.09ppm
CO
AQI 87
Moderate
8.63μg/m³
PM2.5
21.54μg/m³
PM10
65.69ppb
O3
0.84ppb
SO2
21.27ppb
NO2
0.09ppm
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 07:00:00 on 2025-06-20.
The best air quality in Widnes, Halton was recorded at 04:00:00 on 2025-06-20.
The real-time air quality index in Widnes, Halton is 87, currently categorized as Moderate.
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 11.575 μg/m3.
The current PM10 levels in Widnes, Halton are 23.145 μg/m3.
The current carbon monoxide (CO) level in Widnes, Halton is 0.085 ppm.
The current sulfur dioxide (SO2) levels in Widnes, Halton are 0.724 ppb.
The current ozone (O3) levels at Widnes, Halton is 65.733 ppm.
The current nitrogen dioxide (NO2) levels at Widnes, Halton is 18.095 ppb.
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