Stay updated with real-time air quality in Cheltenham, Gloucestershire 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)
44
Good
Cheltenham, Gloucestershire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.05 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.95 μg/m³
0
55
155
255
425
605+
23.35 ppb
0
55
71
86
201
201+
0.71 ppb
0
36
76
186
605
1005+
7.81 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Cheltenham, Gloucestershire
Cheltenham, Gloucestershire
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AQI 49
Good
9.13μg/m³
PM2.5
18.06μg/m³
PM10
20.91ppb
O3
0.76ppb
SO2
4.07ppb
NO2
0.05ppm
CO
AQI 49
Good
9.23μg/m³
PM2.5
18.43μg/m³
PM10
20.21ppb
O3
0.72ppb
SO2
6.35ppb
NO2
0.05ppm
CO
AQI 49
Good
9.24μg/m³
PM2.5
18.44μg/m³
PM10
20.25ppb
O3
0.71ppb
SO2
6.32ppb
NO2
0.05ppm
CO
AQI 49
Good
9.20μg/m³
PM2.5
17.43μg/m³
PM10
21.60ppb
O3
0.76ppb
SO2
4.96ppb
NO2
0.06ppm
CO
AQI 49
Good
9.34μg/m³
PM2.5
18.53μg/m³
PM10
20.84ppb
O3
0.71ppb
SO2
5.42ppb
NO2
0.06ppm
CO
AQI 49
Good
9.28μg/m³
PM2.5
18.59μg/m³
PM10
20.83ppb
O3
0.71ppb
SO2
6.25ppb
NO2
0.06ppm
CO
The air quality data for Gloucestershire, UK is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Cheltenham, Gloucestershire are available every hour.
Cheltenham, Gloucestershire experienced its worst air quality at 09:00:00, 2025-11-06.
The best air quality in Cheltenham, Gloucestershire was observed at 12:00:00 on 2025-11-07.
The air quality in Cheltenham, Gloucestershire right now is Good, with an AQI of 49.
In Cheltenham, Gloucestershire, PM2.5 is the most frequently found pollutant.
When air quality in Cheltenham, Gloucestershire is compromised, staying indoors and wearing a mask can reduce health risks.
Cheltenham, Gloucestershire currently has a PM2.5 concentration of 9.079 μg/m3.
Cheltenham, Gloucestershire currently has a PM10 concentration of 18.358 μg/m3.
The current carbon monoxide (CO) level in Cheltenham, Gloucestershire is 0.052 ppm.
The current sulfur dioxide (SO2) concentration in Cheltenham, Gloucestershire is 0.763 ppb.
Cheltenham, Gloucestershire currently has an ozone (O3) concentration of 20.643 ppm.
The current level of nitrogen dioxide (NO2) in Cheltenham, Gloucestershire is 4.971 ppb.
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