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)
27
Good
Hoddesdon, Hertfordshire
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.78 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.24 μg/m³
0
55
155
255
425
605+
24.16 ppb
0
55
71
86
201
201+
0.90 ppb
0
36
76
186
605
1005+
7.34 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Hoddesdon, Hertfordshire
Hoddesdon, Hertfordshire
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AQI 27
Good
3.65μg/m³
PM2.5
8.33μg/m³
PM10
28.96ppb
O3
0.69ppb
SO2
12.47ppb
NO2
0.01ppm
CO
AQI 27
Good
3.72μg/m³
PM2.5
7.88μg/m³
PM10
28.96ppb
O3
0.74ppb
SO2
13.12ppb
NO2
0.01ppm
CO
AQI 27
Good
4.02μg/m³
PM2.5
12.60μg/m³
PM10
28.86ppb
O3
0.82ppb
SO2
6.44ppb
NO2
0.01ppm
CO
AQI 26
Good
4.22μg/m³
PM2.5
8.98μg/m³
PM10
27.88ppb
O3
0.77ppb
SO2
11.64ppb
NO2
0.02ppm
CO
AQI 27
Good
4.08μg/m³
PM2.5
12.83μg/m³
PM10
28.86ppb
O3
0.81ppb
SO2
6.51ppb
NO2
0.01ppm
CO
AQI 27
Good
3.89μg/m³
PM2.5
12.41μg/m³
PM10
28.79ppb
O3
0.80ppb
SO2
7.64ppb
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 04:00:00 on 2025-07-22.
The best air quality in Hoddesdon, Hertfordshire was recorded at 08:00:00 on 2025-07-22.
The real-time air quality index in Hoddesdon, Hertfordshire is 26, 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 2.928 μg/m3.
The current PM10 levels in Hoddesdon, Hertfordshire are 6.663 μg/m3.
The current carbon monoxide (CO) level in Hoddesdon, Hertfordshire is 0.011 ppm.
The current sulfur dioxide (SO2) levels in Hoddesdon, Hertfordshire are 0.704 ppb.
The current ozone (O3) levels at Hoddesdon, Hertfordshire is 27.572 ppm.
The current nitrogen dioxide (NO2) levels at Hoddesdon, Hertfordshire is 12.31 ppb.
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