Stay updated with real-time air quality in Farnham, Surrey 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)
27
Good
Farnham, Surrey
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.51 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.31 μg/m³
0
55
155
255
425
605+
24.96 ppb
0
55
71
86
201
201+
0.51 ppb
0
36
76
186
605
1005+
14.46 ppb
0
54
101
361
1250
2050+
0.07 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Farnham, Surrey
Farnham, Surrey
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AQI 19
Good
3.08μg/m³
PM2.5
7.63μg/m³
PM10
21.45ppb
O3
0.51ppb
SO2
3.71ppb
NO2
0.03ppm
CO
AQI 19
Good
3.08μg/m³
PM2.5
7.63μg/m³
PM10
21.45ppb
O3
0.51ppb
SO2
3.71ppb
NO2
0.03ppm
CO
AQI 19
Good
3.08μg/m³
PM2.5
7.63μg/m³
PM10
21.45ppb
O3
0.51ppb
SO2
3.71ppb
NO2
0.03ppm
CO
AQI 33
Good
5.84μg/m³
PM2.5
7.23μg/m³
PM10
20.61ppb
O3
0.50ppb
SO2
2.37ppb
NO2
0.04ppm
CO
AQI 19
Good
3.08μg/m³
PM2.5
7.63μg/m³
PM10
21.45ppb
O3
0.51ppb
SO2
3.71ppb
NO2
0.03ppm
CO
AQI 27
Good
4.75μg/m³
PM2.5
11.03μg/m³
PM10
24.99ppb
O3
0.52ppb
SO2
2.42ppb
NO2
0.03ppm
CO
The air quality data for Surrey, 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 Farnham, Surrey are available every hour.
Farnham, Surrey experienced its worst air quality at 08:00:00, 2025-11-07.
The best air quality in Farnham, Surrey was observed at 06:00:00 on 2025-11-08.
The air quality in Farnham, Surrey right now is Good, with an AQI of 19.
In Farnham, Surrey, O3 is the most frequently found pollutant.
When air quality in Farnham, Surrey is compromised, staying indoors and wearing a mask can reduce health risks.
Farnham, Surrey currently has a PM2.5 concentration of 3.079 μg/m3.
Farnham, Surrey currently has a PM10 concentration of 7.635 μg/m3.
The current carbon monoxide (CO) level in Farnham, Surrey is 0.034 ppm.
The current sulfur dioxide (SO2) concentration in Farnham, Surrey is 0.514 ppb.
Farnham, Surrey currently has an ozone (O3) concentration of 21.449 ppm.
The current level of nitrogen dioxide (NO2) in Farnham, Surrey is 3.71 ppb.
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