Stay updated with real-time air quality in Carmarthen, 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)
24
Good
Carmarthen, Wales
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+
6.35 μg/m³
0
55
155
255
425
605+
25.59 ppb
0
55
71
86
201
201+
0.68 ppb
0
36
76
186
605
1005+
2.73 ppb
0
54
101
361
1250
2050+
0.07 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Carmarthen, Wales
Carmarthen, Wales
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AQI 22
Good
3.79μg/m³
PM2.5
7.09μg/m³
PM10
20.58ppb
O3
0.85ppb
SO2
5.22ppb
NO2
0.07ppm
CO
AQI 38
Good
7.03μg/m³
PM2.5
8.43μg/m³
PM10
19.92ppb
O3
0.67ppb
SO2
5.06ppb
NO2
0.07ppm
CO
AQI 38
Good
7.01μg/m³
PM2.5
8.03μg/m³
PM10
19.78ppb
O3
0.69ppb
SO2
5.30ppb
NO2
0.07ppm
CO
AQI 49
Good
8.75μg/m³
PM2.5
13.16μg/m³
PM10
21.26ppb
O3
0.45ppb
SO2
2.74ppb
NO2
0.07ppm
CO
AQI 49
Good
8.99μg/m³
PM2.5
13.98μg/m³
PM10
21.43ppb
O3
0.38ppb
SO2
2.15ppb
NO2
0.07ppm
CO
AQI 22
Good
3.74μg/m³
PM2.5
7.23μg/m³
PM10
19.26ppb
O3
0.66ppb
SO2
5.22ppb
NO2
0.08ppm
CO
Air quality and pollutant data for Wales, UK are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Carmarthen, Wales is updated every hour for accuracy.
In the past 24 hours, the air quality in Carmarthen, Wales was at its worst at 06:00:00 on 2026-08-13.
In the last 24 hours, the best air quality in Carmarthen, Wales was observed at 04:00:00 on 2026-08-14.
As of now, the AQI in Carmarthen, Wales is 24, indicating Good conditions.
Carmarthen, Wales air has the highest levels of O3.
Poor air quality in Carmarthen, Wales means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Carmarthen, Wales are currently 4.009 μg/m3.
The PM10 concentration in Carmarthen, Wales is 6.352 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Carmarthen, Wales is 0.071 ppm.
Currently, Carmarthen, Wales has a sulfur dioxide (SO2) concentration of 0.681 ppb.
The current ozone (O3) level in Carmarthen, Wales at the moment is 25.586 ppm.
Nitrogen dioxide (NO2) level in Carmarthen, Wales at the moment is 2.731 ppb.
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