Stay updated with real-time air quality in Windsor, Windsor and Maidenhead 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
Windsor, Windsor and Maidenhead
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.61 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
7.15 μg/m³
0
55
155
255
425
605+
16.89 ppb
0
55
71
86
201
201+
0.86 ppb
0
36
76
186
605
1005+
5.58 ppb
0
54
101
361
1250
2050+
0.53 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Windsor, Windsor and Maidenhead
Windsor, Windsor and Maidenhead
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AQI 33
Good
6.39μg/m³
PM2.5
16.68μg/m³
PM10
23.87ppb
O3
0.89ppb
SO2
18.70ppb
NO2
0.63ppm
CO
AQI 33
Good
6.05μg/m³
PM2.5
16.10μg/m³
PM10
23.50ppb
O3
0.87ppb
SO2
18.18ppb
NO2
0.63ppm
CO
AQI 44
Good
8.08μg/m³
PM2.5
10.19μg/m³
PM10
23.39ppb
O3
0.78ppb
SO2
7.80ppb
NO2
0.63ppm
CO
AQI 49
Good
8.52μg/m³
PM2.5
14.72μg/m³
PM10
23.32ppb
O3
0.79ppb
SO2
8.13ppb
NO2
0.63ppm
CO
AQI 33
Good
6.49μg/m³
PM2.5
17.22μg/m³
PM10
23.63ppb
O3
0.87ppb
SO2
18.00ppb
NO2
0.63ppm
CO
AQI 33
Good
6.09μg/m³
PM2.5
16.09μg/m³
PM10
23.44ppb
O3
0.87ppb
SO2
18.15ppb
NO2
0.63ppm
CO
Air quality measurements for Windsor and Maidenhead, 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 Windsor, Windsor and Maidenhead is updated on an hourly basis.
The worst air quality in Windsor, Windsor and Maidenhead was recorded at 01:00:00 on 2026-02-12.
The best air quality in Windsor, Windsor and Maidenhead was recorded at 05:00:00 on 2026-02-11.
The real-time air quality index in Windsor, Windsor and Maidenhead is 27, currently categorized as Good.
The most common pollutant in Windsor, Windsor and Maidenhead is PM2.5.
If the air quality in Windsor, Windsor and Maidenhead is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Windsor, Windsor and Maidenhead at present are 4.612 μg/m3.
The current PM10 levels in Windsor, Windsor and Maidenhead are 7.146 μg/m3.
The current carbon monoxide (CO) level in Windsor, Windsor and Maidenhead is 0.531 ppm.
The current sulfur dioxide (SO2) levels in Windsor, Windsor and Maidenhead are 0.864 ppb.
The current ozone (O3) levels at Windsor, Windsor and Maidenhead is 16.887 ppm.
The current nitrogen dioxide (NO2) levels at Windsor, Windsor and Maidenhead is 5.578 ppb.
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