Stay updated with real-time air quality in Borehamwood, 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)
28
Good
Borehamwood, Hertfordshire
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.04 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
6.44 μg/m³
0
55
155
255
425
605+
29.67 ppb
0
55
71
86
201
201+
0.56 ppb
0
36
76
186
605
1005+
2.10 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Borehamwood, Hertfordshire
Borehamwood, Hertfordshire
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AQI 27
Good
5.13μg/m³
PM2.5
14.53μg/m³
PM10
25.39ppb
O3
0.44ppb
SO2
6.41ppb
NO2
0.15ppm
CO
AQI 25
Good
4.28μg/m³
PM2.5
11.45μg/m³
PM10
26.88ppb
O3
0.67ppb
SO2
3.37ppb
NO2
0.15ppm
CO
AQI 26
Good
3.00μg/m³
PM2.5
7.79μg/m³
PM10
28.43ppb
O3
0.57ppb
SO2
3.50ppb
NO2
0.15ppm
CO
AQI 23
Good
4.21μg/m³
PM2.5
11.09μg/m³
PM10
25.01ppb
O3
0.50ppb
SO2
4.77ppb
NO2
0.15ppm
CO
AQI 20
Good
3.10μg/m³
PM2.5
9.06μg/m³
PM10
21.51ppb
O3
0.59ppb
SO2
4.57ppb
NO2
0.15ppm
CO
AQI 25
Good
2.99μg/m³
PM2.5
8.15μg/m³
PM10
27.50ppb
O3
0.60ppb
SO2
4.80ppb
NO2
0.15ppm
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 Borehamwood, Hertfordshire is updated on an hourly basis.
The worst air quality in Borehamwood, Hertfordshire was recorded at 11:00:00 on 2025-06-06.
The best air quality in Borehamwood, Hertfordshire was recorded at 04:00:00 on 2025-06-06.
The real-time air quality index in Borehamwood, Hertfordshire is 28, currently categorized as Good.
The most common pollutant in Borehamwood, Hertfordshire is O3.
If the air quality in Borehamwood, Hertfordshire is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Borehamwood, Hertfordshire at present are 3.042 μg/m3.
The current PM10 levels in Borehamwood, Hertfordshire are 6.439 μg/m3.
The current carbon monoxide (CO) level in Borehamwood, Hertfordshire is 0.146 ppm.
The current sulfur dioxide (SO2) levels in Borehamwood, Hertfordshire are 0.559 ppb.
The current ozone (O3) levels at Borehamwood, Hertfordshire is 29.672 ppm.
The current nitrogen dioxide (NO2) levels at Borehamwood, Hertfordshire is 2.102 ppb.
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