Stay updated with real-time air quality in Ascot, 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)
18
Good
Ascot, Windsor and Maidenhead
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.05 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
9.47 μg/m³
0
55
155
255
425
605+
19.14 ppb
0
55
71
86
201
201+
1.02 ppb
0
36
76
186
605
1005+
5.06 ppb
0
54
101
361
1250
2050+
0.02 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Ascot, Windsor and Maidenhead
Ascot, Windsor and Maidenhead
Scroll To Air Quality MapLoading...
AQI 19
Good
2.86μg/m³
PM2.5
8.38μg/m³
PM10
20.99ppb
O3
0.94ppb
SO2
4.76ppb
NO2
0.03ppm
CO
AQI 27
Good
4.51μg/m³
PM2.5
12.05μg/m³
PM10
18.24ppb
O3
1.20ppb
SO2
12.87ppb
NO2
0.01ppm
CO
AQI 18
Good
3.05μg/m³
PM2.5
9.47μg/m³
PM10
19.14ppb
O3
1.02ppb
SO2
5.06ppb
NO2
0.02ppm
CO
AQI 19
Good
2.86μg/m³
PM2.5
8.38μg/m³
PM10
20.99ppb
O3
0.94ppb
SO2
4.76ppb
NO2
0.03ppm
CO
AQI 19
Good
2.86μg/m³
PM2.5
8.38μg/m³
PM10
20.99ppb
O3
0.94ppb
SO2
4.76ppb
NO2
0.03ppm
CO
AQI 19
Good
2.86μg/m³
PM2.5
8.38μg/m³
PM10
20.99ppb
O3
0.94ppb
SO2
4.76ppb
NO2
0.03ppm
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 Ascot, Windsor and Maidenhead is updated on an hourly basis.
The worst air quality in Ascot, Windsor and Maidenhead was recorded at 08:00:00 on 2025-06-05.
The best air quality in Ascot, Windsor and Maidenhead was recorded at 07:00:00 on 2025-06-06.
The real-time air quality index in Ascot, Windsor and Maidenhead is 18, currently categorized as Good.
The most common pollutant in Ascot, Windsor and Maidenhead is O3.
If the air quality in Ascot, Windsor and Maidenhead is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Ascot, Windsor and Maidenhead at present are 3.047 μg/m3.
The current PM10 levels in Ascot, Windsor and Maidenhead are 9.471 μg/m3.
The current carbon monoxide (CO) level in Ascot, Windsor and Maidenhead is 0.024 ppm.
The current sulfur dioxide (SO2) levels in Ascot, Windsor and Maidenhead are 1.022 ppb.
The current ozone (O3) levels at Ascot, Windsor and Maidenhead is 19.137 ppm.
The current nitrogen dioxide (NO2) levels at Ascot, Windsor and Maidenhead is 5.058 ppb.
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