Stay updated with real-time air quality in Guildford, 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)
33
Good
Guildford, Surrey
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
6.28 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
11.25 μg/m³
0
55
155
255
425
605+
35.51 ppb
0
55
71
86
201
201+
0.85 ppb
0
36
76
186
605
1005+
5.21 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Guildford, Surrey
Guildford, Surrey
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AQI 38
Good
6.50μg/m³
PM2.5
10.48μg/m³
PM10
34.42ppb
O3
0.80ppb
SO2
6.01ppb
NO2
0.23ppm
CO
AQI 38
Good
6.50μg/m³
PM2.5
10.48μg/m³
PM10
34.42ppb
O3
0.80ppb
SO2
6.01ppb
NO2
0.23ppm
CO
AQI 33
Good
5.86μg/m³
PM2.5
11.14μg/m³
PM10
32.83ppb
O3
0.83ppb
SO2
5.57ppb
NO2
0.23ppm
CO
AQI 30
Good
5.25μg/m³
PM2.5
10.52μg/m³
PM10
32.00ppb
O3
0.78ppb
SO2
4.59ppb
NO2
0.23ppm
CO
AQI 33
Good
6.42μg/m³
PM2.5
10.71μg/m³
PM10
34.39ppb
O3
0.83ppb
SO2
4.79ppb
NO2
0.23ppm
CO
AQI 30
Good
5.25μg/m³
PM2.5
10.52μg/m³
PM10
32.00ppb
O3
0.78ppb
SO2
4.59ppb
NO2
0.23ppm
CO
Air quality and pollutant data for Surrey, UK are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Guildford, Surrey is updated every hour for accuracy.
In the past 24 hours, the air quality in Guildford, Surrey was at its worst at 02:00:00 on 2025-06-15.
In the last 24 hours, the best air quality in Guildford, Surrey was observed at 09:00:00 on 2025-06-15.
As of now, the AQI in Guildford, Surrey is 33, indicating Good conditions.
Guildford, Surrey air has the highest levels of O3.
Poor air quality in Guildford, Surrey means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Guildford, Surrey are currently 6.284 μg/m3.
The PM10 concentration in Guildford, Surrey is 11.253 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Guildford, Surrey is 0.235 ppm.
Currently, Guildford, Surrey has a sulfur dioxide (SO2) concentration of 0.854 ppb.
The current ozone (O3) level in Guildford, Surrey at the moment is 35.511 ppm.
Nitrogen dioxide (NO2) level in Guildford, Surrey at the moment is 5.212 ppb.
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