Stay updated with real-time air quality in Swansea, Wales 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
Swansea, Wales
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
10.98 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.00 μg/m³
0
55
155
255
425
605+
20.71 ppb
0
55
71
86
201
201+
0.62 ppb
0
36
76
186
605
1005+
17.48 ppb
0
54
101
361
1250
2050+
0.80 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Swansea, Wales
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AQI 54
Moderate
10.64μg/m³
PM2.5
26.89μg/m³
PM10
26.49ppb
O3
0.55ppb
SO2
21.41ppb
NO2
1.01ppm
CO
AQI 44
Good
7.76μg/m³
PM2.5
28.35μg/m³
PM10
22.19ppb
O3
0.58ppb
SO2
10.57ppb
NO2
1.01ppm
CO
AQI 38
Good
7.02μg/m³
PM2.5
28.98μg/m³
PM10
20.96ppb
O3
0.59ppb
SO2
7.54ppb
NO2
1.01ppm
CO
AQI 44
Good
8.43μg/m³
PM2.5
19.83μg/m³
PM10
26.45ppb
O3
0.51ppb
SO2
7.19ppb
NO2
1.01ppm
CO
AQI 38
Good
7.31μg/m³
PM2.5
28.47μg/m³
PM10
21.61ppb
O3
0.59ppb
SO2
8.98ppb
NO2
1.01ppm
CO
AQI 38
Good
7.47μg/m³
PM2.5
27.95μg/m³
PM10
22.13ppb
O3
0.59ppb
SO2
9.98ppb
NO2
1.01ppm
CO
Air quality data and pollutant measurements for Wales, 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 Swansea, Wales is updated every hour.
The worst air quality in Swansea, Wales in the last 24 hours was observed at 12:00:00 on 2026-02-12.
In the last 24 hrs, the best air quality in Swansea, Wales was observed at 01:00:00 on 2026-02-11.
The current air quality in Swansea, Wales is 54, categorized as Moderate based on real-time data.
The most common pollutant in Swansea, Wales is PM2.5.
If the air quality in Swansea, Wales is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Swansea, Wales is 10.977 μg/m3.
The current PM10 concentration at Swansea, Wales is 27.995 μg/m3.
The current carbon monoxide (CO) concentration at Swansea, Wales is 0.803 ppm.
The current sulfur dioxide (SO2) concentration at Swansea, Wales is 0.616 ppb.
The current ozone (O3) concentration at Swansea, Wales is 20.711 ppm.
The current nitrogen dioxide (NO2) concentration at Swansea, Wales is 17.481 ppb.
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