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)
34
Good
Swansea, Wales
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.99 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.00 μg/m³
0
55
155
255
425
605+
36.66 ppb
0
55
71
86
201
201+
0.64 ppb
0
36
76
186
605
1005+
4.24 ppb
0
54
101
361
1250
2050+
0.08 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Swansea, Wales
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AQI 34
Good
4.81μg/m³
PM2.5
11.92μg/m³
PM10
36.78ppb
O3
0.65ppb
SO2
4.01ppb
NO2
0.08ppm
CO
AQI 35
Good
3.37μg/m³
PM2.5
11.95μg/m³
PM10
38.34ppb
O3
0.74ppb
SO2
2.12ppb
NO2
0.08ppm
CO
AQI 36
Good
3.01μg/m³
PM2.5
12.00μg/m³
PM10
38.76ppb
O3
0.76ppb
SO2
1.61ppb
NO2
0.08ppm
CO
AQI 32
Good
4.15μg/m³
PM2.5
10.23μg/m³
PM10
35.38ppb
O3
0.58ppb
SO2
2.19ppb
NO2
0.09ppm
CO
AQI 36
Good
3.15μg/m³
PM2.5
11.94μg/m³
PM10
38.57ppb
O3
0.75ppb
SO2
1.84ppb
NO2
0.08ppm
CO
AQI 35
Good
3.21μg/m³
PM2.5
11.86μg/m³
PM10
38.44ppb
O3
0.74ppb
SO2
1.99ppb
NO2
0.08ppm
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 09:00:00 on 2025-06-06.
In the last 24 hrs, the best air quality in Swansea, Wales was observed at 05:00:00 on 2025-06-06.
The current air quality in Swansea, Wales is 34, categorized as Good based on real-time data.
The most common pollutant in Swansea, Wales is O3.
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 4.988 μg/m3.
The current PM10 concentration at Swansea, Wales is 11.997 μg/m3.
The current carbon monoxide (CO) concentration at Swansea, Wales is 0.084 ppm.
The current sulfur dioxide (SO2) concentration at Swansea, Wales is 0.64 ppb.
The current ozone (O3) concentration at Swansea, Wales is 36.659 ppm.
The current nitrogen dioxide (NO2) concentration at Swansea, Wales is 4.24 ppb.
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