Stay updated with real-time air quality in Cheshunt, Hertfordshire 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)
29
Good
Cheshunt, Hertfordshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.45 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.99 μg/m³
0
55
155
255
425
605+
31.32 ppb
0
55
71
86
201
201+
0.36 ppb
0
36
76
186
605
1005+
5.94 ppb
0
54
101
361
1250
2050+
0.01 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Cheshunt, Hertfordshire
Cheshunt, Hertfordshire
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AQI 30
Good
3.31μg/m³
PM2.5
9.28μg/m³
PM10
31.81ppb
O3
0.35ppb
SO2
4.12ppb
NO2
0.01ppm
CO
AQI 30
Good
3.36μg/m³
PM2.5
9.97μg/m³
PM10
31.64ppb
O3
0.35ppb
SO2
4.03ppb
NO2
0.01ppm
CO
AQI 29
Good
3.61μg/m³
PM2.5
8.76μg/m³
PM10
30.68ppb
O3
0.37ppb
SO2
7.20ppb
NO2
0.01ppm
CO
AQI 27
Good
3.48μg/m³
PM2.5
12.35μg/m³
PM10
29.21ppb
O3
0.40ppb
SO2
4.56ppb
NO2
0.01ppm
CO
AQI 27
Good
3.53μg/m³
PM2.5
12.85μg/m³
PM10
28.66ppb
O3
0.41ppb
SO2
4.80ppb
NO2
0.01ppm
CO
AQI 28
Good
3.70μg/m³
PM2.5
7.11μg/m³
PM10
30.46ppb
O3
0.39ppb
SO2
13.99ppb
NO2
0.01ppm
CO
Air quality and pollutant data for Hertfordshire, 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 Cheshunt, Hertfordshire is updated every hour for accuracy.
In the past 24 hours, the air quality in Cheshunt, Hertfordshire was at its worst at 11:00:00 on 2025-12-27.
In the last 24 hours, the best air quality in Cheshunt, Hertfordshire was observed at 09:00:00 on 2025-12-28.
As of now, the AQI in Cheshunt, Hertfordshire is 29, indicating Good conditions.
Cheshunt, Hertfordshire air has the highest levels of O3.
Poor air quality in Cheshunt, Hertfordshire means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Cheshunt, Hertfordshire are currently 3.446 μg/m3.
The PM10 concentration in Cheshunt, Hertfordshire is 8.986 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Cheshunt, Hertfordshire is 0.008 ppm.
Currently, Cheshunt, Hertfordshire has a sulfur dioxide (SO2) concentration of 0.358 ppb.
The current ozone (O3) level in Cheshunt, Hertfordshire at the moment is 31.324 ppm.
Nitrogen dioxide (NO2) level in Cheshunt, Hertfordshire at the moment is 5.936 ppb.
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