Stay updated with real-time air quality in Chorleywood, 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
Chorleywood, Hertfordshire
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.11 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.14 μg/m³
0
55
155
255
425
605+
26.50 ppb
0
55
71
86
201
201+
0.58 ppb
0
36
76
186
605
1005+
4.31 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Chorleywood, Hertfordshire
Chorleywood, Hertfordshire
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AQI 24
Good
3.11μg/m³
PM2.5
8.14μg/m³
PM10
26.50ppb
O3
0.58ppb
SO2
4.31ppb
NO2
0.15ppm
CO
AQI 19
Good
2.63μg/m³
PM2.5
8.35μg/m³
PM10
21.09ppb
O3
0.58ppb
SO2
4.03ppb
NO2
0.15ppm
CO
AQI 21
Good
2.62μg/m³
PM2.5
8.17μg/m³
PM10
23.39ppb
O3
0.59ppb
SO2
4.33ppb
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 20
Good
3.10μg/m³
PM2.5
9.06μg/m³
PM10
21.51ppb
O3
0.59ppb
SO2
4.57ppb
NO2
0.15ppm
CO
AQI 19
Good
2.62μg/m³
PM2.5
8.90μg/m³
PM10
21.12ppb
O3
0.59ppb
SO2
3.88ppb
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 Chorleywood, Hertfordshire is updated on an hourly basis.
The worst air quality in Chorleywood, Hertfordshire was recorded at 03:00:00 on 2025-06-07.
The best air quality in Chorleywood, Hertfordshire was recorded at 11:00:00 on 2025-06-06.
The real-time air quality index in Chorleywood, Hertfordshire is 24, currently categorized as Good.
The most common pollutant in Chorleywood, Hertfordshire is O3.
If the air quality in Chorleywood, Hertfordshire is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Chorleywood, Hertfordshire at present are 3.107 μg/m3.
The current PM10 levels in Chorleywood, Hertfordshire are 8.139 μg/m3.
The current carbon monoxide (CO) level in Chorleywood, Hertfordshire is 0.155 ppm.
The current sulfur dioxide (SO2) levels in Chorleywood, Hertfordshire are 0.581 ppb.
The current ozone (O3) levels at Chorleywood, Hertfordshire is 26.498 ppm.
The current nitrogen dioxide (NO2) levels at Chorleywood, Hertfordshire is 4.306 ppb.
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