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)
32
Good
Caerphilly, Wales
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.67 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.00 μg/m³
0
55
155
255
425
605+
35.30 ppb
0
55
71
86
201
201+
0.31 ppb
0
36
76
186
605
1005+
4.06 ppb
0
54
101
361
1250
2050+
0.12 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Caerphilly, Wales
Caerphilly, Wales
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AQI 33
Good
4.58μg/m³
PM2.5
12.59μg/m³
PM10
35.69ppb
O3
0.32ppb
SO2
3.95ppb
NO2
0.13ppm
CO
AQI 33
Good
4.57μg/m³
PM2.5
12.78μg/m³
PM10
36.08ppb
O3
0.30ppb
SO2
3.74ppb
NO2
0.13ppm
CO
AQI 34
Good
4.38μg/m³
PM2.5
12.12μg/m³
PM10
36.63ppb
O3
0.30ppb
SO2
3.11ppb
NO2
0.13ppm
CO
AQI 32
Good
4.94μg/m³
PM2.5
12.84μg/m³
PM10
34.96ppb
O3
0.32ppb
SO2
4.74ppb
NO2
0.13ppm
CO
AQI 34
Good
4.43μg/m³
PM2.5
13.22μg/m³
PM10
36.81ppb
O3
0.28ppb
SO2
2.90ppb
NO2
0.12ppm
CO
AQI 33
Good
5.02μg/m³
PM2.5
12.87μg/m³
PM10
35.95ppb
O3
0.30ppb
SO2
4.06ppb
NO2
0.13ppm
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 03:00:00 on 2025-12-28.
The best air quality in Caerphilly, Wales was recorded at 10:00:00 on 2025-12-27.
The real-time air quality index in Caerphilly, Wales is 32, 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 4.674 μg/m3.
The current PM10 levels in Caerphilly, Wales are 12.997 μg/m3.
The current carbon monoxide (CO) level in Caerphilly, Wales is 0.124 ppm.
The current sulfur dioxide (SO2) levels in Caerphilly, Wales are 0.308 ppb.
The current ozone (O3) levels at Caerphilly, Wales is 35.301 ppm.
The current nitrogen dioxide (NO2) levels at Caerphilly, Wales is 4.056 ppb.
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