Stay updated with real-time air quality in Caerphilly, 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)
27
Good
Caerphilly, Wales
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.25 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.16 μg/m³
0
55
155
255
425
605+
28.52 ppb
0
55
71
86
201
201+
0.56 ppb
0
36
76
186
605
1005+
2.22 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Caerphilly, Wales
Caerphilly, Wales
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AQI 27
Good
3.44μg/m³
PM2.5
10.09μg/m³
PM10
28.80ppb
O3
0.42ppb
SO2
2.00ppb
NO2
0.36ppm
CO
AQI 28
Good
2.73μg/m³
PM2.5
8.03μg/m³
PM10
30.26ppb
O3
0.40ppb
SO2
1.87ppb
NO2
0.36ppm
CO
AQI 28
Good
3.75μg/m³
PM2.5
6.57μg/m³
PM10
29.61ppb
O3
0.42ppb
SO2
2.68ppb
NO2
0.36ppm
CO
AQI 27
Good
1.92μg/m³
PM2.5
8.98μg/m³
PM10
28.63ppb
O3
0.38ppb
SO2
2.02ppb
NO2
0.36ppm
CO
AQI 30
Good
3.15μg/m³
PM2.5
7.74μg/m³
PM10
31.99ppb
O3
0.39ppb
SO2
0.68ppb
NO2
0.36ppm
CO
AQI 28
Good
3.00μg/m³
PM2.5
7.15μg/m³
PM10
29.96ppb
O3
0.43ppb
SO2
2.43ppb
NO2
0.36ppm
CO
Air quality measurements for Wales, UK meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Caerphilly, Wales is updated on an hourly basis.
The worst air quality in Caerphilly, Wales was recorded at 09:00:00 on 2026-10-09.
The best air quality in Caerphilly, Wales was recorded at 06:00:00 on 2026-10-08.
The real-time air quality index in Caerphilly, Wales is 27, currently categorized as Good.
The most common pollutant in Caerphilly, Wales is O3.
If the air quality in Caerphilly, Wales is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Caerphilly, Wales at present are 2.31 μg/m3.
The current PM10 levels in Caerphilly, Wales are 8.732 μg/m3.
The current carbon monoxide (CO) level in Caerphilly, Wales is 0.358 ppm.
The current sulfur dioxide (SO2) levels in Caerphilly, Wales are 0.391 ppb.
The current ozone (O3) levels at Caerphilly, Wales is 29.302 ppm.
The current nitrogen dioxide (NO2) levels at Caerphilly, Wales is 2.075 ppb.
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