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
7.25 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.57 μg/m³
0
55
155
255
425
605+
29.18 ppb
0
55
71
86
201
201+
0.71 ppb
0
36
76
186
605
1005+
3.13 ppb
0
54
101
361
1250
2050+
0.80 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Dorchester, Dorset
Dorchester, Dorset
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AQI 38
Good
7.37μg/m³
PM2.5
26.42μg/m³
PM10
34.07ppb
O3
0.72ppb
SO2
4.55ppb
NO2
1.01ppm
CO
AQI 38
Good
6.67μg/m³
PM2.5
20.37μg/m³
PM10
29.78ppb
O3
0.70ppb
SO2
4.85ppb
NO2
1.01ppm
CO
AQI 49
Good
8.58μg/m³
PM2.5
32.50μg/m³
PM10
30.41ppb
O3
0.81ppb
SO2
3.53ppb
NO2
1.01ppm
CO
AQI 38
Good
7.19μg/m³
PM2.5
12.43μg/m³
PM10
30.28ppb
O3
0.71ppb
SO2
4.12ppb
NO2
1.01ppm
CO
AQI 38
Good
6.68μg/m³
PM2.5
12.21μg/m³
PM10
29.65ppb
O3
0.71ppb
SO2
9.45ppb
NO2
1.01ppm
CO
AQI 49
Good
8.75μg/m³
PM2.5
34.10μg/m³
PM10
33.20ppb
O3
0.76ppb
SO2
4.56ppb
NO2
1.01ppm
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 12:00:00 on 2026-02-12.
In the last 24 hours, the best air quality in Dorchester, Dorset was observed at 05:00:00 on 2026-02-11.
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 7.252 μg/m3.
The PM10 concentration in Dorchester, Dorset is 28.573 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Dorchester, Dorset is 0.803 ppm.
Currently, Dorchester, Dorset has a sulfur dioxide (SO2) concentration of 0.711 ppb.
The current ozone (O3) level in Dorchester, Dorset at the moment is 29.185 ppm.
Nitrogen dioxide (NO2) level in Dorchester, Dorset at the moment is 3.135 ppb.
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