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)
26
Good
Cheshunt, Hertfordshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.18 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.01 μg/m³
0
55
155
255
425
605+
27.76 ppb
0
55
71
86
201
201+
0.92 ppb
0
36
76
186
605
1005+
4.17 ppb
0
54
101
361
1250
2050+
0.11 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Cheshunt, Hertfordshire
Cheshunt, Hertfordshire
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AQI 26
Good
4.31μg/m³
PM2.5
10.55μg/m³
PM10
28.44ppb
O3
0.93ppb
SO2
8.68ppb
NO2
0.12ppm
CO
AQI 27
Good
4.37μg/m³
PM2.5
11.30μg/m³
PM10
28.74ppb
O3
0.90ppb
SO2
10.19ppb
NO2
0.12ppm
CO
AQI 24
Good
4.16μg/m³
PM2.5
7.06μg/m³
PM10
26.10ppb
O3
0.96ppb
SO2
5.15ppb
NO2
0.12ppm
CO
AQI 24
Good
4.21μg/m³
PM2.5
8.52μg/m³
PM10
26.21ppb
O3
0.89ppb
SO2
4.55ppb
NO2
0.12ppm
CO
AQI 24
Good
4.21μg/m³
PM2.5
8.52μg/m³
PM10
26.21ppb
O3
0.89ppb
SO2
4.55ppb
NO2
0.12ppm
CO
AQI 26
Good
4.10μg/m³
PM2.5
8.96μg/m³
PM10
28.43ppb
O3
0.95ppb
SO2
6.10ppb
NO2
0.12ppm
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 01:00:00 on 2026-05-14.
In the last 24 hours, the best air quality in Cheshunt, Hertfordshire was observed at 09:00:00 on 2026-05-14.
As of now, the AQI in Cheshunt, Hertfordshire is 26, 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 4.185 μg/m3.
The PM10 concentration in Cheshunt, Hertfordshire is 8.006 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Cheshunt, Hertfordshire is 0.108 ppm.
Currently, Cheshunt, Hertfordshire has a sulfur dioxide (SO2) concentration of 0.921 ppb.
The current ozone (O3) level in Cheshunt, Hertfordshire at the moment is 27.758 ppm.
Nitrogen dioxide (NO2) level in Cheshunt, Hertfordshire at the moment is 4.17 ppb.
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