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)
26
Good
Cheltenham, Gloucestershire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.62 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.07 μg/m³
0
55
155
255
425
605+
28.36 ppb
0
55
71
86
201
201+
0.52 ppb
0
36
76
186
605
1005+
3.44 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Cheltenham, Gloucestershire
Cheltenham, Gloucestershire
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AQI 29
Good
3.79μg/m³
PM2.5
9.32μg/m³
PM10
31.37ppb
O3
0.59ppb
SO2
5.16ppb
NO2
0.17ppm
CO
AQI 27
Good
3.82μg/m³
PM2.5
9.53μg/m³
PM10
29.47ppb
O3
0.58ppb
SO2
5.71ppb
NO2
0.17ppm
CO
AQI 27
Good
3.84μg/m³
PM2.5
9.54μg/m³
PM10
29.39ppb
O3
0.58ppb
SO2
5.75ppb
NO2
0.17ppm
CO
AQI 29
Good
3.81μg/m³
PM2.5
9.19μg/m³
PM10
31.28ppb
O3
0.59ppb
SO2
5.45ppb
NO2
0.17ppm
CO
AQI 28
Good
4.00μg/m³
PM2.5
9.67μg/m³
PM10
29.60ppb
O3
0.58ppb
SO2
6.04ppb
NO2
0.17ppm
CO
AQI 27
Good
3.82μg/m³
PM2.5
9.37μg/m³
PM10
28.74ppb
O3
0.57ppb
SO2
6.20ppb
NO2
0.17ppm
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 11:00:00, 2026-06-28.
The best air quality in Cheltenham, Gloucestershire was observed at 09:00:00 on 2026-06-29.
The air quality in Cheltenham, Gloucestershire right now is Good, with an AQI of 27.
In Cheltenham, Gloucestershire, O3 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 3.623 μg/m3.
Cheltenham, Gloucestershire currently has a PM10 concentration of 8.461 μg/m3.
The current carbon monoxide (CO) level in Cheltenham, Gloucestershire is 0.174 ppm.
The current sulfur dioxide (SO2) concentration in Cheltenham, Gloucestershire is 0.636 ppb.
Cheltenham, Gloucestershire currently has an ozone (O3) concentration of 29.488 ppm.
The current level of nitrogen dioxide (NO2) in Cheltenham, Gloucestershire is 5.088 ppb.
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