Stay updated with real-time air quality in Halton, 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)
49
Good
Halton, UK
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.98 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.08 μg/m³
0
55
155
255
425
605+
21.04 ppb
0
55
71
86
201
201+
0.85 ppb
0
36
76
186
605
1005+
14.14 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Halton, UK
Halton, UK
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| City | AQI | PM2.5 | PM10 | O3 | SO2 | NO2 | CO |
|---|---|---|---|---|---|---|---|
AQI 27
Good
3.65μg/m³
PM2.5
7.65μg/m³
PM10
28.57ppb
O3
0.16ppb
SO2
3.66ppb
NO2
0.01ppm
CO
AQI 27
Good
3.66μg/m³
PM2.5
6.85μg/m³
PM10
28.58ppb
O3
0.15ppb
SO2
1.69ppb
NO2
0.01ppm
CO
AQI 27
Good
3.63μg/m³
PM2.5
7.47μg/m³
PM10
28.82ppb
O3
0.18ppb
SO2
1.71ppb
NO2
0.03ppm
CO
AQI 28
Good
4.02μg/m³
PM2.5
6.59μg/m³
PM10
30.49ppb
O3
0.15ppb
SO2
8.30ppb
NO2
0.01ppm
CO
AQI 27
Good
3.63μg/m³
PM2.5
9.06μg/m³
PM10
28.77ppb
O3
0.14ppb
SO2
4.14ppb
NO2
0.01ppm
CO
AQI 29
Good
3.45μg/m³
PM2.5
8.30μg/m³
PM10
31.00ppb
O3
0.22ppb
SO2
1.88ppb
NO2
0.05ppm
CO
Air quality data and pollutant measurements for Halton, UK adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Halton, UK is updated every hour.
The worst air quality in Halton, UK in the last 24 hours was observed at 06:00:00 on 2025-12-27.
In the last 24 hrs, the best air quality in Halton, UK was observed at 09:00:00 on 2025-12-28.
The current air quality in Halton, UK is 49, categorized as Good based on real-time data.
The most common pollutant in Halton, UK is PM2.5.
If the air quality in Halton, UK is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Halton, UK is 8.976 μg/m3.
The current PM10 concentration at Halton, UK is 20.08 μg/m3.
The current carbon monoxide (CO) concentration at Halton, UK is 0.177 ppm.
The current sulfur dioxide (SO2) concentration at Halton, UK is 0.848 ppb.
The current ozone (O3) concentration at Halton, UK is 21.041 ppm.
The current nitrogen dioxide (NO2) concentration at Halton, UK is 14.145 ppb.
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