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)
58
Moderate
Windsor, Windsor and Maidenhead
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
13.49 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
24.48 μg/m³
0
55
155
255
425
605+
40.32 ppb
0
55
71
86
201
201+
0.44 ppb
0
36
76
186
605
1005+
4.35 ppb
0
54
101
361
1250
2050+
0.01 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 62
Moderate
15.03μg/m³
PM2.5
24.63μg/m³
PM10
38.92ppb
O3
0.43ppb
SO2
4.58ppb
NO2
0.00ppm
CO
AQI 62
Moderate
15.04μg/m³
PM2.5
24.42μg/m³
PM10
38.82ppb
O3
0.44ppb
SO2
4.11ppb
NO2
0.00ppm
CO
AQI 60
Moderate
13.89μg/m³
PM2.5
24.10μg/m³
PM10
40.83ppb
O3
0.43ppb
SO2
4.54ppb
NO2
0.01ppm
CO
AQI 58
Moderate
13.49μg/m³
PM2.5
24.48μg/m³
PM10
40.32ppb
O3
0.44ppb
SO2
4.35ppb
NO2
0.01ppm
CO
AQI 62
Moderate
15.07μg/m³
PM2.5
24.25μg/m³
PM10
38.71ppb
O3
0.44ppb
SO2
3.39ppb
NO2
0.00ppm
CO
AQI 62
Moderate
14.89μg/m³
PM2.5
23.93μg/m³
PM10
38.52ppb
O3
0.44ppb
SO2
3.61ppb
NO2
0.00ppm
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 2026-07-18.
The best air quality in Windsor, Windsor and Maidenhead was recorded at 01:00:00 on 2026-07-17.
The real-time air quality index in Windsor, Windsor and Maidenhead is 58, currently categorized as Moderate.
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 13.495 μg/m3.
The current PM10 levels in Windsor, Windsor and Maidenhead are 24.481 μg/m3.
The current carbon monoxide (CO) level in Windsor, Windsor and Maidenhead is 0.006 ppm.
The current sulfur dioxide (SO2) levels in Windsor, Windsor and Maidenhead are 0.436 ppb.
The current ozone (O3) levels at Windsor, Windsor and Maidenhead is 40.316 ppm.
The current nitrogen dioxide (NO2) levels at Windsor, Windsor and Maidenhead is 4.354 ppb.
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