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)
56
Moderate
Ascot, Windsor and Maidenhead
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
11.71 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
21.08 μg/m³
0
55
155
255
425
605+
49.04 ppb
0
55
71
86
201
201+
0.76 ppb
0
36
76
186
605
1005+
7.42 ppb
0
54
101
361
1250
2050+
0.02 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Ascot, Windsor and Maidenhead
Ascot, Windsor and Maidenhead
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AQI 56
Moderate
11.68μg/m³
PM2.5
20.00μg/m³
PM10
40.84ppb
O3
0.70ppb
SO2
7.22ppb
NO2
0.03ppm
CO
AQI 54
Moderate
11.35μg/m³
PM2.5
24.00μg/m³
PM10
41.55ppb
O3
0.72ppb
SO2
23.20ppb
NO2
0.01ppm
CO
AQI 56
Moderate
11.71μg/m³
PM2.5
21.08μg/m³
PM10
49.04ppb
O3
0.76ppb
SO2
7.42ppb
NO2
0.02ppm
CO
AQI 56
Moderate
11.68μg/m³
PM2.5
20.00μg/m³
PM10
40.84ppb
O3
0.70ppb
SO2
7.22ppb
NO2
0.03ppm
CO
AQI 56
Moderate
11.68μg/m³
PM2.5
20.00μg/m³
PM10
40.84ppb
O3
0.70ppb
SO2
7.22ppb
NO2
0.03ppm
CO
AQI 56
Moderate
11.68μg/m³
PM2.5
20.00μg/m³
PM10
40.84ppb
O3
0.70ppb
SO2
7.22ppb
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 11:00:00 on 2025-06-12.
The best air quality in Ascot, Windsor and Maidenhead was recorded at 07:00:00 on 2025-06-12.
The real-time air quality index in Ascot, Windsor and Maidenhead is 56, currently categorized as Moderate.
The most common pollutant in Ascot, Windsor and Maidenhead is PM2.5.
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 11.71 μg/m3.
The current PM10 levels in Ascot, Windsor and Maidenhead are 21.077 μg/m3.
The current carbon monoxide (CO) level in Ascot, Windsor and Maidenhead is 0.021 ppm.
The current sulfur dioxide (SO2) levels in Ascot, Windsor and Maidenhead are 0.759 ppb.
The current ozone (O3) levels at Ascot, Windsor and Maidenhead is 49.043 ppm.
The current nitrogen dioxide (NO2) levels at Ascot, Windsor and Maidenhead is 7.42 ppb.
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