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)
49
Good
Cheltenham, Gloucestershire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.85 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
34.29 μg/m³
0
55
155
255
425
605+
30.65 ppb
0
55
71
86
201
201+
1.01 ppb
0
36
76
186
605
1005+
6.45 ppb
0
54
101
361
1250
2050+
0.04 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Cheltenham, Gloucestershire
Cheltenham, Gloucestershire
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AQI 38
Good
6.95μg/m³
PM2.5
35.44μg/m³
PM10
30.49ppb
O3
1.12ppb
SO2
6.28ppb
NO2
0.04ppm
CO
AQI 52
Moderate
10.34μg/m³
PM2.5
38.20μg/m³
PM10
33.85ppb
O3
1.09ppb
SO2
9.74ppb
NO2
0.04ppm
CO
AQI 52
Moderate
10.38μg/m³
PM2.5
38.95μg/m³
PM10
33.77ppb
O3
1.08ppb
SO2
9.90ppb
NO2
0.04ppm
CO
AQI 38
Good
7.02μg/m³
PM2.5
21.03μg/m³
PM10
28.70ppb
O3
1.12ppb
SO2
6.64ppb
NO2
0.05ppm
CO
AQI 49
Good
9.04μg/m³
PM2.5
37.89μg/m³
PM10
30.18ppb
O3
1.03ppb
SO2
10.00ppb
NO2
0.05ppm
CO
AQI 54
Moderate
10.96μg/m³
PM2.5
22.11μg/m³
PM10
32.78ppb
O3
1.01ppb
SO2
8.82ppb
NO2
0.05ppm
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 08:00:00, 2026-08-13.
The best air quality in Cheltenham, Gloucestershire was observed at 07:00:00 on 2026-08-14.
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 8.845 μg/m3.
Cheltenham, Gloucestershire currently has a PM10 concentration of 34.294 μg/m3.
The current carbon monoxide (CO) level in Cheltenham, Gloucestershire is 0.044 ppm.
The current sulfur dioxide (SO2) concentration in Cheltenham, Gloucestershire is 1.008 ppb.
Cheltenham, Gloucestershire currently has an ozone (O3) concentration of 30.653 ppm.
The current level of nitrogen dioxide (NO2) in Cheltenham, Gloucestershire is 6.454 ppb.
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