Stay updated with real-time air quality in Selsey, West Sussex 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)
52
Moderate
Selsey, West Sussex
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.94 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
22.83 μg/m³
0
55
155
255
425
605+
33.56 ppb
0
55
71
86
201
201+
0.89 ppb
0
36
76
186
605
1005+
4.90 ppb
0
54
101
361
1250
2050+
0.80 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Selsey, West Sussex
Selsey, West Sussex
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AQI 52
Moderate
10.17μg/m³
PM2.5
22.00μg/m³
PM10
35.45ppb
O3
0.82ppb
SO2
4.33ppb
NO2
1.01ppm
CO
AQI 52
Moderate
9.96μg/m³
PM2.5
21.29μg/m³
PM10
34.49ppb
O3
0.82ppb
SO2
4.33ppb
NO2
1.01ppm
CO
AQI 49
Good
9.31μg/m³
PM2.5
16.16μg/m³
PM10
32.06ppb
O3
0.80ppb
SO2
11.10ppb
NO2
1.01ppm
CO
AQI 52
Moderate
10.17μg/m³
PM2.5
22.00μg/m³
PM10
35.45ppb
O3
0.82ppb
SO2
4.33ppb
NO2
1.01ppm
CO
AQI 52
Moderate
9.85μg/m³
PM2.5
21.13μg/m³
PM10
34.46ppb
O3
0.81ppb
SO2
5.12ppb
NO2
1.01ppm
CO
AQI 49
Good
9.19μg/m³
PM2.5
16.04μg/m³
PM10
32.81ppb
O3
0.80ppb
SO2
9.88ppb
NO2
1.01ppm
CO
Air quality measurements for West Sussex, 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 Selsey, West Sussex is updated on an hourly basis.
The worst air quality in Selsey, West Sussex was recorded at 12:00:00 on 2026-02-12.
The best air quality in Selsey, West Sussex was recorded at 07:00:00 on 2026-02-11.
The real-time air quality index in Selsey, West Sussex is 52, currently categorized as Moderate.
The most common pollutant in Selsey, West Sussex is PM2.5.
If the air quality in Selsey, West Sussex is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Selsey, West Sussex at present are 9.937 μg/m3.
The current PM10 levels in Selsey, West Sussex are 22.83 μg/m3.
The current carbon monoxide (CO) level in Selsey, West Sussex is 0.803 ppm.
The current sulfur dioxide (SO2) levels in Selsey, West Sussex are 0.892 ppb.
The current ozone (O3) levels at Selsey, West Sussex is 33.565 ppm.
The current nitrogen dioxide (NO2) levels at Selsey, West Sussex is 4.902 ppb.
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