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)
24
Good
Borehamwood, Hertfordshire
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
2.83 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
4.89 μg/m³
0
55
155
255
425
605+
25.77 ppb
0
55
71
86
201
201+
0.38 ppb
0
36
76
186
605
1005+
1.89 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Borehamwood, Hertfordshire
Borehamwood, Hertfordshire
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AQI 22
Good
3.87μg/m³
PM2.5
8.63μg/m³
PM10
21.47ppb
O3
0.39ppb
SO2
10.43ppb
NO2
0.37ppm
CO
AQI 22
Good
4.01μg/m³
PM2.5
10.62μg/m³
PM10
19.42ppb
O3
0.41ppb
SO2
6.79ppb
NO2
0.37ppm
CO
AQI 33
Good
5.72μg/m³
PM2.5
13.16μg/m³
PM10
18.24ppb
O3
0.42ppb
SO2
11.61ppb
NO2
0.37ppm
CO
AQI 22
Good
3.87μg/m³
PM2.5
8.22μg/m³
PM10
20.04ppb
O3
0.41ppb
SO2
8.60ppb
NO2
0.37ppm
CO
AQI 27
Good
5.12μg/m³
PM2.5
10.27μg/m³
PM10
19.20ppb
O3
0.43ppb
SO2
2.98ppb
NO2
0.37ppm
CO
AQI 33
Good
5.72μg/m³
PM2.5
10.70μg/m³
PM10
19.06ppb
O3
0.43ppb
SO2
7.11ppb
NO2
0.37ppm
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 06:00:00 on 2025-09-16.
The best air quality in Borehamwood, Hertfordshire was recorded at 04:00:00 on 2025-09-17.
The real-time air quality index in Borehamwood, Hertfordshire is 22, currently categorized as Good.
The most common pollutant in Borehamwood, Hertfordshire is PM2.5.
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 4.218 μg/m3.
The current PM10 levels in Borehamwood, Hertfordshire are 7.388 μg/m3.
The current carbon monoxide (CO) level in Borehamwood, Hertfordshire is 0.37 ppm.
The current sulfur dioxide (SO2) levels in Borehamwood, Hertfordshire are 0.409 ppb.
The current ozone (O3) levels at Borehamwood, Hertfordshire is 18.964 ppm.
The current nitrogen dioxide (NO2) levels at Borehamwood, Hertfordshire is 7.12 ppb.
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