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
9.33 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.84 μg/m³
0
55
155
255
425
605+
19.49 ppb
0
55
71
86
201
201+
0.66 ppb
0
36
76
186
605
1005+
22.13 ppb
0
54
101
361
1250
2050+
0.76 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Cheltenham, Gloucestershire
Cheltenham, Gloucestershire
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AQI 49
Good
9.28μg/m³
PM2.5
15.79μg/m³
PM10
18.64ppb
O3
0.67ppb
SO2
20.46ppb
NO2
0.76ppm
CO
AQI 49
Good
9.45μg/m³
PM2.5
16.66μg/m³
PM10
20.97ppb
O3
0.66ppb
SO2
24.49ppb
NO2
0.76ppm
CO
AQI 49
Good
9.49μg/m³
PM2.5
16.68μg/m³
PM10
20.94ppb
O3
0.67ppb
SO2
24.75ppb
NO2
0.76ppm
CO
AQI 52
Moderate
9.57μg/m³
PM2.5
14.97μg/m³
PM10
21.13ppb
O3
0.68ppb
SO2
14.22ppb
NO2
0.76ppm
CO
AQI 52
Moderate
9.98μg/m³
PM2.5
16.36μg/m³
PM10
20.27ppb
O3
0.73ppb
SO2
21.55ppb
NO2
0.76ppm
CO
AQI 52
Moderate
10.46μg/m³
PM2.5
16.98μg/m³
PM10
18.56ppb
O3
0.71ppb
SO2
28.60ppb
NO2
0.76ppm
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 10:00:00, 2026-11-12.
The best air quality in Cheltenham, Gloucestershire was observed at 10:00:00 on 2026-11-12.
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 9.33 μg/m3.
Cheltenham, Gloucestershire currently has a PM10 concentration of 15.844 μg/m3.
The current carbon monoxide (CO) level in Cheltenham, Gloucestershire is 0.762 ppm.
The current sulfur dioxide (SO2) concentration in Cheltenham, Gloucestershire is 0.66 ppb.
Cheltenham, Gloucestershire currently has an ozone (O3) concentration of 19.49 ppm.
The current level of nitrogen dioxide (NO2) in Cheltenham, Gloucestershire is 22.132 ppb.
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