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)
31
Good
Hoddesdon, Hertfordshire
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.58 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
11.29 μg/m³
0
55
155
255
425
605+
32.66 ppb
0
55
71
86
201
201+
0.89 ppb
0
36
76
186
605
1005+
5.18 ppb
0
54
101
361
1250
2050+
0.01 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Hoddesdon, Hertfordshire
Hoddesdon, Hertfordshire
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AQI 25
Good
3.79μg/m³
PM2.5
10.15μg/m³
PM10
26.77ppb
O3
0.85ppb
SO2
5.74ppb
NO2
0.01ppm
CO
AQI 33
Good
3.03μg/m³
PM2.5
10.48μg/m³
PM10
35.75ppb
O3
0.85ppb
SO2
5.07ppb
NO2
0.01ppm
CO
AQI 31
Good
3.58μg/m³
PM2.5
11.21μg/m³
PM10
33.25ppb
O3
0.89ppb
SO2
4.59ppb
NO2
0.01ppm
CO
AQI 33
Good
3.40μg/m³
PM2.5
10.64μg/m³
PM10
36.31ppb
O3
0.91ppb
SO2
5.07ppb
NO2
0.01ppm
CO
AQI 31
Good
3.59μg/m³
PM2.5
11.13μg/m³
PM10
33.83ppb
O3
0.89ppb
SO2
4.00ppb
NO2
0.01ppm
CO
AQI 31
Good
3.59μg/m³
PM2.5
11.13μg/m³
PM10
33.83ppb
O3
0.89ppb
SO2
4.01ppb
NO2
0.01ppm
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 05:00:00 on 2025-06-06.
The best air quality in Hoddesdon, Hertfordshire was recorded at 11:00:00 on 2025-06-06.
The real-time air quality index in Hoddesdon, Hertfordshire is 31, 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 3.58 μg/m3.
The current PM10 levels in Hoddesdon, Hertfordshire are 11.291 μg/m3.
The current carbon monoxide (CO) level in Hoddesdon, Hertfordshire is 0.006 ppm.
The current sulfur dioxide (SO2) levels in Hoddesdon, Hertfordshire are 0.885 ppb.
The current ozone (O3) levels at Hoddesdon, Hertfordshire is 32.655 ppm.
The current nitrogen dioxide (NO2) levels at Hoddesdon, Hertfordshire is 5.183 ppb.
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