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)
38
Good
Heswall, Merseyside
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.94 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.56 μg/m³
0
55
155
255
425
605+
41.22 ppb
0
55
71
86
201
201+
0.40 ppb
0
36
76
186
605
1005+
1.47 ppb
0
54
101
361
1250
2050+
0.09 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Heswall, Merseyside
Heswall, Merseyside
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AQI 38
Good
4.91μg/m³
PM2.5
13.93μg/m³
PM10
41.14ppb
O3
0.40ppb
SO2
1.55ppb
NO2
0.09ppm
CO
AQI 38
Good
4.97μg/m³
PM2.5
13.29μg/m³
PM10
41.34ppb
O3
0.41ppb
SO2
1.29ppb
NO2
0.09ppm
CO
AQI 38
Good
4.38μg/m³
PM2.5
11.24μg/m³
PM10
40.99ppb
O3
0.41ppb
SO2
1.72ppb
NO2
0.09ppm
CO
AQI 38
Good
5.00μg/m³
PM2.5
19.29μg/m³
PM10
41.33ppb
O3
0.41ppb
SO2
1.49ppb
NO2
0.09ppm
CO
AQI 38
Good
4.96μg/m³
PM2.5
16.67μg/m³
PM10
41.34ppb
O3
0.41ppb
SO2
1.45ppb
NO2
0.09ppm
CO
AQI 38
Good
4.93μg/m³
PM2.5
15.96μg/m³
PM10
41.35ppb
O3
0.41ppb
SO2
1.47ppb
NO2
0.09ppm
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 09:00:00 on 2026-03-29.
In the last 24 hrs, the best air quality in Heswall, Merseyside was observed at 11:00:00 on 2026-03-29.
The current air quality in Heswall, Merseyside is 38, 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 4.943 μg/m3.
The current PM10 concentration at Heswall, Merseyside is 14.562 μg/m3.
The current carbon monoxide (CO) concentration at Heswall, Merseyside is 0.093 ppm.
The current sulfur dioxide (SO2) concentration at Heswall, Merseyside is 0.404 ppb.
The current ozone (O3) concentration at Heswall, Merseyside is 41.216 ppm.
The current nitrogen dioxide (NO2) concentration at Heswall, Merseyside is 1.473 ppb.
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