Stay updated with real-time air quality in Weymouth, Dorset 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)
49
Good
Weymouth, Dorset
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
8.62 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.09 μg/m³
0
55
155
255
425
605+
25.22 ppb
0
55
71
86
201
201+
0.44 ppb
0
36
76
186
605
1005+
1.76 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Weymouth, Dorset
Weymouth, Dorset
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AQI 22
Good
3.90μg/m³
PM2.5
15.07μg/m³
PM10
9.46ppb
O3
0.47ppb
SO2
4.86ppb
NO2
0.07ppm
CO
AQI 16
Good
3.23μg/m³
PM2.5
11.55μg/m³
PM10
8.94ppb
O3
0.45ppb
SO2
4.51ppb
NO2
0.07ppm
CO
AQI 22
Good
4.15μg/m³
PM2.5
15.85μg/m³
PM10
16.57ppb
O3
0.41ppb
SO2
5.07ppb
NO2
0.06ppm
CO
AQI 22
Good
4.37μg/m³
PM2.5
17.94μg/m³
PM10
15.98ppb
O3
0.41ppb
SO2
4.41ppb
NO2
0.06ppm
CO
AQI 22
Good
3.68μg/m³
PM2.5
10.79μg/m³
PM10
9.75ppb
O3
0.50ppb
SO2
4.55ppb
NO2
0.07ppm
CO
AQI 16
Good
3.30μg/m³
PM2.5
8.01μg/m³
PM10
9.16ppb
O3
0.50ppb
SO2
3.83ppb
NO2
0.07ppm
CO
Air quality measurements for Dorset, 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 Weymouth, Dorset is updated on an hourly basis.
The worst air quality in Weymouth, Dorset was recorded at 06:00:00 on 2025-07-20.
The best air quality in Weymouth, Dorset was recorded at 08:00:00 on 2025-07-21.
The real-time air quality index in Weymouth, Dorset is 22, currently categorized as Good.
The most common pollutant in Weymouth, Dorset is PM2.5.
If the air quality in Weymouth, Dorset is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Weymouth, Dorset at present are 3.948 μg/m3.
The current PM10 levels in Weymouth, Dorset are 8.306 μg/m3.
The current carbon monoxide (CO) level in Weymouth, Dorset is 0.064 ppm.
The current sulfur dioxide (SO2) levels in Weymouth, Dorset are 0.444 ppb.
The current ozone (O3) levels at Weymouth, Dorset is 11.298 ppm.
The current nitrogen dioxide (NO2) levels at Weymouth, Dorset is 3.422 ppb.
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