Stay updated with real-time air quality in Horndean, Hampshire 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)
25
Good
Horndean, Hampshire
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.32 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.29 μg/m³
0
55
155
255
425
605+
27.12 ppb
0
55
71
86
201
201+
0.38 ppb
0
36
76
186
605
1005+
2.04 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Horndean, Hampshire
Horndean, Hampshire
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AQI 26
Good
3.67μg/m³
PM2.5
9.09μg/m³
PM10
28.16ppb
O3
0.38ppb
SO2
7.69ppb
NO2
0.04ppm
CO
AQI 26
Good
3.66μg/m³
PM2.5
9.07μg/m³
PM10
28.15ppb
O3
0.38ppb
SO2
7.70ppb
NO2
0.04ppm
CO
AQI 26
Good
3.66μg/m³
PM2.5
9.22μg/m³
PM10
28.01ppb
O3
0.39ppb
SO2
6.78ppb
NO2
0.04ppm
CO
AQI 26
Good
3.49μg/m³
PM2.5
10.95μg/m³
PM10
27.96ppb
O3
0.39ppb
SO2
7.02ppb
NO2
0.04ppm
CO
AQI 26
Good
3.70μg/m³
PM2.5
9.17μg/m³
PM10
28.38ppb
O3
0.38ppb
SO2
7.85ppb
NO2
0.04ppm
CO
AQI 27
Good
3.82μg/m³
PM2.5
9.41μg/m³
PM10
28.69ppb
O3
0.38ppb
SO2
8.04ppb
NO2
0.04ppm
CO
Air quality and pollutant data for Hampshire, UK are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Horndean, Hampshire is updated every hour for accuracy.
In the past 24 hours, the air quality in Horndean, Hampshire was at its worst at 03:00:00 on 2025-09-16.
In the last 24 hours, the best air quality in Horndean, Hampshire was observed at 08:00:00 on 2025-09-17.
As of now, the AQI in Horndean, Hampshire is 26, indicating Good conditions.
Horndean, Hampshire air has the highest levels of O3.
Poor air quality in Horndean, Hampshire means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Horndean, Hampshire are currently 3.685 μg/m3.
The PM10 concentration in Horndean, Hampshire is 9.12 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Horndean, Hampshire is 0.043 ppm.
Currently, Horndean, Hampshire has a sulfur dioxide (SO2) concentration of 0.382 ppb.
The current ozone (O3) level in Horndean, Hampshire at the moment is 28.211 ppm.
Nitrogen dioxide (NO2) level in Horndean, Hampshire at the moment is 7.72 ppb.
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