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)
38
Good
Selsey, West Sussex
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.36 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
11.32 μg/m³
0
55
155
255
425
605+
10.98 ppb
0
55
71
86
201
201+
1.13 ppb
0
36
76
186
605
1005+
9.54 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Selsey, West Sussex
Selsey, West Sussex
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AQI 49
Good
8.73μg/m³
PM2.5
23.59μg/m³
PM10
8.23ppb
O3
0.74ppb
SO2
15.45ppb
NO2
0.29ppm
CO
AQI 52
Moderate
10.18μg/m³
PM2.5
24.31μg/m³
PM10
8.69ppb
O3
0.70ppb
SO2
14.75ppb
NO2
0.29ppm
CO
AQI 44
Good
7.84μg/m³
PM2.5
11.36μg/m³
PM10
13.15ppb
O3
0.59ppb
SO2
10.54ppb
NO2
0.29ppm
CO
AQI 49
Good
8.73μg/m³
PM2.5
23.59μg/m³
PM10
8.23ppb
O3
0.74ppb
SO2
15.45ppb
NO2
0.29ppm
CO
AQI 49
Good
8.58μg/m³
PM2.5
12.63μg/m³
PM10
9.14ppb
O3
0.63ppb
SO2
13.06ppb
NO2
0.29ppm
CO
AQI 44
Good
7.55μg/m³
PM2.5
10.92μg/m³
PM10
13.56ppb
O3
0.58ppb
SO2
9.71ppb
NO2
0.29ppm
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 08:00:00 on 2026-10-07.
The best air quality in Selsey, West Sussex was recorded at 11:00:00 on 2026-10-06.
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 10.012 μg/m3.
The current PM10 levels in Selsey, West Sussex are 23.277 μg/m3.
The current carbon monoxide (CO) level in Selsey, West Sussex is 0.295 ppm.
The current sulfur dioxide (SO2) levels in Selsey, West Sussex are 0.7 ppb.
The current ozone (O3) levels at Selsey, West Sussex is 8.684 ppm.
The current nitrogen dioxide (NO2) levels at Selsey, West Sussex is 14.511 ppb.
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