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)
28
Good
Heswall, Merseyside
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.01 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.92 μg/m³
0
55
155
255
425
605+
29.60 ppb
0
55
71
86
201
201+
0.47 ppb
0
36
76
186
605
1005+
2.81 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Heswall, Merseyside
Heswall, Merseyside
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AQI 27
Good
4.01μg/m³
PM2.5
12.54μg/m³
PM10
29.16ppb
O3
0.41ppb
SO2
2.72ppb
NO2
0.17ppm
CO
AQI 27
Good
4.02μg/m³
PM2.5
12.03μg/m³
PM10
29.09ppb
O3
0.41ppb
SO2
2.45ppb
NO2
0.17ppm
CO
AQI 27
Good
3.42μg/m³
PM2.5
8.54μg/m³
PM10
29.09ppb
O3
0.43ppb
SO2
3.36ppb
NO2
0.17ppm
CO
AQI 27
Good
4.00μg/m³
PM2.5
16.13μg/m³
PM10
29.08ppb
O3
0.42ppb
SO2
3.30ppb
NO2
0.17ppm
CO
AQI 27
Good
4.01μg/m³
PM2.5
14.39μg/m³
PM10
29.09ppb
O3
0.41ppb
SO2
3.08ppb
NO2
0.17ppm
CO
AQI 27
Good
4.03μg/m³
PM2.5
13.98μg/m³
PM10
29.09ppb
O3
0.41ppb
SO2
3.12ppb
NO2
0.17ppm
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 10:00:00 on 2026-06-28.
In the last 24 hrs, the best air quality in Heswall, Merseyside was observed at 12:00:00 on 2026-06-29.
The current air quality in Heswall, Merseyside is 28, categorized as Good based on real-time data.
The most common pollutant in Heswall, Merseyside is O3.
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 4.01 μg/m3.
The current PM10 concentration at Heswall, Merseyside is 12.923 μg/m3.
The current carbon monoxide (CO) concentration at Heswall, Merseyside is 0.174 ppm.
The current sulfur dioxide (SO2) concentration at Heswall, Merseyside is 0.473 ppb.
The current ozone (O3) concentration at Heswall, Merseyside is 29.602 ppm.
The current nitrogen dioxide (NO2) concentration at Heswall, Merseyside is 2.812 ppb.
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