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)
33
Good
Caerphilly, Wales
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.74 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.72 μg/m³
0
55
155
255
425
605+
35.69 ppb
0
55
71
86
201
201+
0.65 ppb
0
36
76
186
605
1005+
3.55 ppb
0
54
101
361
1250
2050+
0.11 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Caerphilly, Wales
Caerphilly, Wales
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AQI 31
Good
3.32μg/m³
PM2.5
10.44μg/m³
PM10
33.89ppb
O3
0.67ppb
SO2
4.42ppb
NO2
0.12ppm
CO
AQI 35
Good
3.02μg/m³
PM2.5
10.19μg/m³
PM10
38.10ppb
O3
0.64ppb
SO2
3.34ppb
NO2
0.12ppm
CO
AQI 31
Good
3.37μg/m³
PM2.5
10.14μg/m³
PM10
34.00ppb
O3
0.70ppb
SO2
3.67ppb
NO2
0.12ppm
CO
AQI 31
Good
2.81μg/m³
PM2.5
12.93μg/m³
PM10
33.91ppb
O3
0.65ppb
SO2
7.34ppb
NO2
0.12ppm
CO
AQI 38
Good
3.16μg/m³
PM2.5
9.47μg/m³
PM10
41.13ppb
O3
0.64ppb
SO2
1.15ppb
NO2
0.12ppm
CO
AQI 36
Good
3.02μg/m³
PM2.5
8.29μg/m³
PM10
38.85ppb
O3
0.63ppb
SO2
1.67ppb
NO2
0.12ppm
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 2026-05-14.
The best air quality in Caerphilly, Wales was recorded at 07:00:00 on 2026-05-14.
The real-time air quality index in Caerphilly, Wales is 33, 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 2.736 μg/m3.
The current PM10 levels in Caerphilly, Wales are 10.719 μg/m3.
The current carbon monoxide (CO) level in Caerphilly, Wales is 0.108 ppm.
The current sulfur dioxide (SO2) levels in Caerphilly, Wales are 0.648 ppb.
The current ozone (O3) levels at Caerphilly, Wales is 35.689 ppm.
The current nitrogen dioxide (NO2) levels at Caerphilly, Wales is 3.549 ppb.
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