Stay updated with real-time air quality in Barnham, 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)
90
Moderate
Barnham, West Sussex
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
10.69 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
46.56 μg/m³
0
55
155
255
425
605+
67.29 ppb
0
55
71
86
201
201+
1.08 ppb
0
36
76
186
605
1005+
13.27 ppb
0
54
101
361
1250
2050+
0.02 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Barnham, West Sussex
Barnham, West Sussex
Scroll To Air Quality MapLoading...
AQI 80
Moderate
10.98μg/m³
PM2.5
48.07μg/m³
PM10
64.18ppb
O3
0.76ppb
SO2
12.81ppb
NO2
0.02ppm
CO
AQI 52
Moderate
9.82μg/m³
PM2.5
32.80μg/m³
PM10
50.22ppb
O3
0.65ppb
SO2
10.73ppb
NO2
0.02ppm
CO
AQI 84
Moderate
11.01μg/m³
PM2.5
44.35μg/m³
PM10
65.17ppb
O3
0.65ppb
SO2
14.40ppb
NO2
0.02ppm
CO
AQI 84
Moderate
11.01μg/m³
PM2.5
44.35μg/m³
PM10
65.17ppb
O3
0.65ppb
SO2
14.40ppb
NO2
0.02ppm
CO
AQI 93
Moderate
11.05μg/m³
PM2.5
44.60μg/m³
PM10
68.31ppb
O3
0.81ppb
SO2
8.93ppb
NO2
0.03ppm
CO
AQI 93
Moderate
11.05μg/m³
PM2.5
44.60μg/m³
PM10
68.31ppb
O3
0.81ppb
SO2
8.93ppb
NO2
0.03ppm
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 Barnham, West Sussex is updated on an hourly basis.
The worst air quality in Barnham, West Sussex was recorded at 08:00:00 on 2026-08-13.
The best air quality in Barnham, West Sussex was recorded at 02:00:00 on 2026-08-14.
The real-time air quality index in Barnham, West Sussex is 90, currently categorized as Moderate.
The most common pollutant in Barnham, West Sussex is O3.
If the air quality in Barnham, West Sussex is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Barnham, West Sussex at present are 10.688 μg/m3.
The current PM10 levels in Barnham, West Sussex are 46.562 μg/m3.
The current carbon monoxide (CO) level in Barnham, West Sussex is 0.024 ppm.
The current sulfur dioxide (SO2) levels in Barnham, West Sussex are 1.084 ppb.
The current ozone (O3) levels at Barnham, West Sussex is 67.288 ppm.
The current nitrogen dioxide (NO2) levels at Barnham, West Sussex is 13.274 ppb.
All Rights Reserved © Ambee Inc. 2025