Stay updated with real-time air quality in West Sussex, UK 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)
49
Good
West Sussex, UK
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.15 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.06 μg/m³
0
55
155
255
425
605+
34.61 ppb
0
55
71
86
201
201+
0.94 ppb
0
36
76
186
605
1005+
6.93 ppb
0
54
101
361
1250
2050+
0.04 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
West Sussex, UK
West Sussex, UK
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| City | AQI | PM2.5 | PM10 | O3 | SO2 | NO2 | CO |
|---|---|---|---|---|---|---|---|
AQI 33
Good
5.63μg/m³
PM2.5
14.68μg/m³
PM10
29.12ppb
O3
0.88ppb
SO2
13.16ppb
NO2
0.02ppm
CO
AQI 38
Good
6.63μg/m³
PM2.5
13.35μg/m³
PM10
39.05ppb
O3
0.79ppb
SO2
2.57ppb
NO2
0.04ppm
CO
AQI 33
Good
6.15μg/m³
PM2.5
10.01μg/m³
PM10
19.20ppb
O3
0.86ppb
SO2
11.66ppb
NO2
0.03ppm
CO
AQI 33
Good
6.07μg/m³
PM2.5
10.79μg/m³
PM10
17.39ppb
O3
0.85ppb
SO2
8.15ppb
NO2
0.03ppm
CO
AQI 38
Good
6.87μg/m³
PM2.5
16.50μg/m³
PM10
34.93ppb
O3
0.77ppb
SO2
13.35ppb
NO2
0.05ppm
CO
AQI 38
Good
7.24μg/m³
PM2.5
10.14μg/m³
PM10
22.21ppb
O3
0.87ppb
SO2
13.10ppb
NO2
0.02ppm
CO
Air quality data and pollutant measurements for West Sussex, UK adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for West Sussex, UK is updated every hour.
The worst air quality in West Sussex, UK in the last 24 hours was observed at 07:00:00 on 2026-02-11.
In the last 24 hrs, the best air quality in West Sussex, UK was observed at 02:00:00 on 2026-02-11.
The current air quality in West Sussex, UK is 49, categorized as Good based on real-time data.
The most common pollutant in West Sussex, UK is PM2.5.
If the air quality in West Sussex, UK is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at West Sussex, UK is 9.292 μg/m3.
The current PM10 concentration at West Sussex, UK is 26.71 μg/m3.
The current carbon monoxide (CO) concentration at West Sussex, UK is 0.04 ppm.
The current sulfur dioxide (SO2) concentration at West Sussex, UK is 0.915 ppb.
The current ozone (O3) concentration at West Sussex, UK is 35.578 ppm.
The current nitrogen dioxide (NO2) concentration at West Sussex, UK is 5.812 ppb.
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