Stay updated with real-time air quality in Colwyn Bay, 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)
23
Good
Colwyn Bay, Wales
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.07 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
7.00 μg/m³
0
55
155
255
425
605+
24.55 ppb
0
55
71
86
201
201+
0.02 ppb
0
36
76
186
605
1005+
0.73 ppb
0
54
101
361
1250
2050+
0.10 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Colwyn Bay, Wales
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AQI 29
Good
3.86μg/m³
PM2.5
10.11μg/m³
PM10
31.11ppb
O3
0.06ppb
SO2
0.58ppb
NO2
0.10ppm
CO
AQI 29
Good
3.84μg/m³
PM2.5
9.89μg/m³
PM10
31.12ppb
O3
0.06ppb
SO2
0.56ppb
NO2
0.10ppm
CO
AQI 26
Good
3.65μg/m³
PM2.5
9.82μg/m³
PM10
27.50ppb
O3
0.40ppb
SO2
0.78ppb
NO2
0.11ppm
CO
AQI 25
Good
3.56μg/m³
PM2.5
9.69μg/m³
PM10
26.73ppb
O3
0.49ppb
SO2
0.83ppb
NO2
0.11ppm
CO
AQI 29
Good
4.06μg/m³
PM2.5
10.63μg/m³
PM10
31.39ppb
O3
0.07ppb
SO2
0.60ppb
NO2
0.11ppm
CO
AQI 24
Good
3.40μg/m³
PM2.5
9.74μg/m³
PM10
26.45ppb
O3
0.50ppb
SO2
0.82ppb
NO2
0.10ppm
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 Colwyn Bay, Wales is updated on an hourly basis.
The worst air quality in Colwyn Bay, Wales was recorded at 08:00:00 on 2025-06-22.
The best air quality in Colwyn Bay, Wales was recorded at 01:00:00 on 2025-06-23.
The real-time air quality index in Colwyn Bay, Wales is 29, currently categorized as Good.
The most common pollutant in Colwyn Bay, Wales is O3.
If the air quality in Colwyn Bay, Wales is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Colwyn Bay, Wales at present are 3.807 μg/m3.
The current PM10 levels in Colwyn Bay, Wales are 9.787 μg/m3.
The current carbon monoxide (CO) level in Colwyn Bay, Wales is 0.105 ppm.
The current sulfur dioxide (SO2) levels in Colwyn Bay, Wales are 0.06 ppb.
The current ozone (O3) levels at Colwyn Bay, Wales is 30.933 ppm.
The current nitrogen dioxide (NO2) levels at Colwyn Bay, Wales is 0.541 ppb.
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