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)
33
Good
Chorleywood, Hertfordshire
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
6.38 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.60 μg/m³
0
55
155
255
425
605+
33.72 ppb
0
55
71
86
201
201+
0.84 ppb
0
36
76
186
605
1005+
4.24 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Chorleywood, Hertfordshire
Chorleywood, Hertfordshire
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AQI 33
Good
6.38μg/m³
PM2.5
13.60μg/m³
PM10
33.72ppb
O3
0.84ppb
SO2
4.24ppb
NO2
0.23ppm
CO
AQI 38
Good
6.51μg/m³
PM2.5
14.59μg/m³
PM10
33.81ppb
O3
0.83ppb
SO2
4.23ppb
NO2
0.23ppm
CO
AQI 38
Good
6.55μg/m³
PM2.5
14.42μg/m³
PM10
34.22ppb
O3
0.82ppb
SO2
3.56ppb
NO2
0.23ppm
CO
AQI 38
Good
6.71μg/m³
PM2.5
10.72μg/m³
PM10
35.20ppb
O3
0.85ppb
SO2
6.05ppb
NO2
0.23ppm
CO
AQI 38
Good
6.51μg/m³
PM2.5
14.04μg/m³
PM10
33.13ppb
O3
0.84ppb
SO2
4.24ppb
NO2
0.23ppm
CO
AQI 33
Good
6.22μg/m³
PM2.5
14.67μg/m³
PM10
33.02ppb
O3
0.82ppb
SO2
3.40ppb
NO2
0.23ppm
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 11:00:00 on 2025-06-14.
The best air quality in Chorleywood, Hertfordshire was recorded at 12:00:00 on 2025-06-15.
The real-time air quality index in Chorleywood, Hertfordshire is 33, currently categorized as Good.
The most common pollutant in Chorleywood, Hertfordshire is PM2.5.
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 6.375 μg/m3.
The current PM10 levels in Chorleywood, Hertfordshire are 13.6 μg/m3.
The current carbon monoxide (CO) level in Chorleywood, Hertfordshire is 0.235 ppm.
The current sulfur dioxide (SO2) levels in Chorleywood, Hertfordshire are 0.844 ppb.
The current ozone (O3) levels at Chorleywood, Hertfordshire is 33.724 ppm.
The current nitrogen dioxide (NO2) levels at Chorleywood, Hertfordshire is 4.238 ppb.
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