Stay updated with real-time air quality in Heswall, Merseyside 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)
54
Moderate
Heswall, Merseyside
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
11.29 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
22.43 μg/m³
0
55
155
255
425
605+
15.51 ppb
0
55
71
86
201
201+
1.07 ppb
0
36
76
186
605
1005+
18.86 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Heswall, Merseyside
Heswall, Merseyside
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AQI 56
Moderate
11.72μg/m³
PM2.5
25.25μg/m³
PM10
13.13ppb
O3
1.32ppb
SO2
19.86ppb
NO2
0.20ppm
CO
AQI 52
Moderate
10.00μg/m³
PM2.5
21.02μg/m³
PM10
18.33ppb
O3
0.97ppb
SO2
16.94ppb
NO2
0.19ppm
CO
AQI 52
Moderate
9.85μg/m³
PM2.5
21.67μg/m³
PM10
16.77ppb
O3
0.99ppb
SO2
16.81ppb
NO2
0.18ppm
CO
AQI 49
Good
9.49μg/m³
PM2.5
19.80μg/m³
PM10
19.73ppb
O3
0.88ppb
SO2
15.46ppb
NO2
0.18ppm
CO
AQI 49
Good
9.22μg/m³
PM2.5
19.11μg/m³
PM10
20.99ppb
O3
0.78ppb
SO2
13.73ppb
NO2
0.17ppm
CO
AQI 49
Good
8.83μg/m³
PM2.5
17.53μg/m³
PM10
22.50ppb
O3
0.87ppb
SO2
13.96ppb
NO2
0.18ppm
CO
Air quality data and pollutant measurements for Merseyside, 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 Heswall, Merseyside is updated every hour.
The worst air quality in Heswall, Merseyside in the last 24 hours was observed at 07:00:00 on 2025-12-28.
In the last 24 hrs, the best air quality in Heswall, Merseyside was observed at 11:00:00 on 2025-12-27.
The current air quality in Heswall, Merseyside is 54, categorized as Moderate based on real-time data.
The most common pollutant in Heswall, Merseyside is PM2.5.
If the air quality in Heswall, Merseyside is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Heswall, Merseyside is 11.285 μg/m3.
The current PM10 concentration at Heswall, Merseyside is 22.428 μg/m3.
The current carbon monoxide (CO) concentration at Heswall, Merseyside is 0.197 ppm.
The current sulfur dioxide (SO2) concentration at Heswall, Merseyside is 1.075 ppb.
The current ozone (O3) concentration at Heswall, Merseyside is 15.514 ppm.
The current nitrogen dioxide (NO2) concentration at Heswall, Merseyside is 18.857 ppb.
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