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)
33
Good
West Sussex, UK
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.55 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.20 μg/m³
0
55
155
255
425
605+
30.05 ppb
0
55
71
86
201
201+
0.34 ppb
0
36
76
186
605
1005+
5.08 ppb
0
54
101
361
1250
2050+
0.09 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 28
Good
3.00μg/m³
PM2.5
8.29μg/m³
PM10
30.02ppb
O3
0.15ppb
SO2
6.63ppb
NO2
0.01ppm
CO
AQI 26
Good
3.29μg/m³
PM2.5
8.14μg/m³
PM10
27.85ppb
O3
0.25ppb
SO2
1.68ppb
NO2
0.01ppm
CO
AQI 28
Good
1.92μg/m³
PM2.5
8.84μg/m³
PM10
30.06ppb
O3
0.16ppb
SO2
1.69ppb
NO2
0.01ppm
CO
AQI 31
Good
2.38μg/m³
PM2.5
4.14μg/m³
PM10
33.81ppb
O3
0.16ppb
SO2
0.52ppb
NO2
0.01ppm
CO
AQI 27
Good
2.43μg/m³
PM2.5
6.01μg/m³
PM10
29.38ppb
O3
0.22ppb
SO2
4.38ppb
NO2
0.03ppm
CO
AQI 28
Good
4.02μg/m³
PM2.5
6.59μg/m³
PM10
30.49ppb
O3
0.15ppb
SO2
8.30ppb
NO2
0.01ppm
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 08:00:00 on 2025-12-27.
In the last 24 hrs, the best air quality in West Sussex, UK was observed at 05:00:00 on 2025-12-28.
The current air quality in West Sussex, UK is 27, 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 4.623 μg/m3.
The current PM10 concentration at West Sussex, UK is 16.089 μg/m3.
The current carbon monoxide (CO) concentration at West Sussex, UK is 0.012 ppm.
The current sulfur dioxide (SO2) concentration at West Sussex, UK is 0.191 ppb.
The current ozone (O3) concentration at West Sussex, UK is 27.059 ppm.
The current nitrogen dioxide (NO2) concentration at West Sussex, UK is 2.654 ppb.
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