Stay updated with real-time air quality in Hoddesdon, 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)
38
Good
Hoddesdon, Hertfordshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.85 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.45 μg/m³
0
55
155
255
425
605+
18.77 ppb
0
55
71
86
201
201+
1.04 ppb
0
36
76
186
605
1005+
7.72 ppb
0
54
101
361
1250
2050+
0.30 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Hoddesdon, Hertfordshire
Hoddesdon, Hertfordshire
Scroll To Air Quality MapLoading...
AQI 28
Good
4.84μg/m³
PM2.5
8.54μg/m³
PM10
29.54ppb
O3
0.47ppb
SO2
5.19ppb
NO2
0.00ppm
CO
AQI 33
Good
5.56μg/m³
PM2.5
9.86μg/m³
PM10
28.69ppb
O3
0.57ppb
SO2
3.58ppb
NO2
0.00ppm
CO
AQI 27
Good
4.41μg/m³
PM2.5
15.72μg/m³
PM10
29.00ppb
O3
0.58ppb
SO2
4.22ppb
NO2
0.00ppm
CO
AQI 26
Good
3.56μg/m³
PM2.5
8.48μg/m³
PM10
28.39ppb
O3
0.65ppb
SO2
3.39ppb
NO2
0.00ppm
CO
AQI 27
Good
4.35μg/m³
PM2.5
15.87μg/m³
PM10
29.11ppb
O3
0.58ppb
SO2
3.73ppb
NO2
0.00ppm
CO
AQI 27
Good
4.35μg/m³
PM2.5
15.88μg/m³
PM10
29.11ppb
O3
0.58ppb
SO2
3.78ppb
NO2
0.00ppm
CO
Air quality measurements for Hertfordshire, UK meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Hoddesdon, Hertfordshire is updated on an hourly basis.
The worst air quality in Hoddesdon, Hertfordshire was recorded at 10:00:00 on 2025-11-04.
The best air quality in Hoddesdon, Hertfordshire was recorded at 09:00:00 on 2025-11-04.
The real-time air quality index in Hoddesdon, Hertfordshire is 27, currently categorized as Good.
The most common pollutant in Hoddesdon, Hertfordshire is O3.
If the air quality in Hoddesdon, Hertfordshire is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Hoddesdon, Hertfordshire at present are 4.46 μg/m3.
The current PM10 levels in Hoddesdon, Hertfordshire are 15.563 μg/m3.
The current carbon monoxide (CO) level in Hoddesdon, Hertfordshire is 0.002 ppm.
The current sulfur dioxide (SO2) levels in Hoddesdon, Hertfordshire are 0.586 ppb.
The current ozone (O3) levels at Hoddesdon, Hertfordshire is 28.881 ppm.
The current nitrogen dioxide (NO2) levels at Hoddesdon, Hertfordshire is 4.942 ppb.
All Rights Reserved © Ambee Inc. 2025