Stay updated with real-time air quality in Dorchester, 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)
38
Good
Dorchester, Dorset
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.70 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.14 μg/m³
0
55
155
255
425
605+
27.69 ppb
0
55
71
86
201
201+
0.30 ppb
0
36
76
186
605
1005+
3.48 ppb
0
54
101
361
1250
2050+
0.13 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Dorchester, Dorset
Dorchester, Dorset
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AQI 38
Good
6.81μg/m³
PM2.5
14.37μg/m³
PM10
28.75ppb
O3
0.27ppb
SO2
3.81ppb
NO2
0.13ppm
CO
AQI 33
Good
6.09μg/m³
PM2.5
12.64μg/m³
PM10
29.80ppb
O3
0.27ppb
SO2
2.90ppb
NO2
0.13ppm
CO
AQI 38
Good
6.84μg/m³
PM2.5
14.82μg/m³
PM10
26.34ppb
O3
0.32ppb
SO2
3.95ppb
NO2
0.13ppm
CO
AQI 33
Good
6.10μg/m³
PM2.5
13.09μg/m³
PM10
28.39ppb
O3
0.30ppb
SO2
3.13ppb
NO2
0.13ppm
CO
AQI 33
Good
6.24μg/m³
PM2.5
13.67μg/m³
PM10
28.45ppb
O3
0.32ppb
SO2
3.41ppb
NO2
0.13ppm
CO
AQI 44
Good
7.74μg/m³
PM2.5
14.97μg/m³
PM10
26.45ppb
O3
0.37ppb
SO2
5.46ppb
NO2
0.14ppm
CO
Air quality and pollutant data for Dorset, UK are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Dorchester, Dorset is updated every hour for accuracy.
In the past 24 hours, the air quality in Dorchester, Dorset was at its worst at 01:00:00 on 2025-12-28.
In the last 24 hours, the best air quality in Dorchester, Dorset was observed at 09:00:00 on 2025-12-28.
As of now, the AQI in Dorchester, Dorset is 38, indicating Good conditions.
Dorchester, Dorset air has the highest levels of PM2.5.
Poor air quality in Dorchester, Dorset means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Dorchester, Dorset are currently 6.697 μg/m3.
The PM10 concentration in Dorchester, Dorset is 14.14 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Dorchester, Dorset is 0.129 ppm.
Currently, Dorchester, Dorset has a sulfur dioxide (SO2) concentration of 0.3 ppb.
The current ozone (O3) level in Dorchester, Dorset at the moment is 27.694 ppm.
Nitrogen dioxide (NO2) level in Dorchester, Dorset at the moment is 3.484 ppb.
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