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)
24
Good
Horndean, Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.37 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
6.05 μg/m³
0
55
155
255
425
605+
25.82 ppb
0
55
71
86
201
201+
0.53 ppb
0
36
76
186
605
1005+
3.53 ppb
0
54
101
361
1250
2050+
0.11 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Horndean, Hampshire
Horndean, Hampshire
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AQI 24
Good
2.98μg/m³
PM2.5
6.38μg/m³
PM10
25.61ppb
O3
0.52ppb
SO2
3.22ppb
NO2
0.12ppm
CO
AQI 23
Good
2.99μg/m³
PM2.5
6.35μg/m³
PM10
25.48ppb
O3
0.52ppb
SO2
3.23ppb
NO2
0.12ppm
CO
AQI 25
Good
2.94μg/m³
PM2.5
6.59μg/m³
PM10
26.53ppb
O3
0.59ppb
SO2
4.32ppb
NO2
0.12ppm
CO
AQI 25
Good
2.89μg/m³
PM2.5
6.39μg/m³
PM10
26.76ppb
O3
0.60ppb
SO2
3.37ppb
NO2
0.12ppm
CO
AQI 24
Good
3.00μg/m³
PM2.5
6.53μg/m³
PM10
25.87ppb
O3
0.52ppb
SO2
3.58ppb
NO2
0.12ppm
CO
AQI 25
Good
2.97μg/m³
PM2.5
6.73μg/m³
PM10
26.89ppb
O3
0.49ppb
SO2
3.54ppb
NO2
0.12ppm
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 10:00:00 on 2026-05-13.
In the last 24 hours, the best air quality in Horndean, Hampshire was observed at 10:00:00 on 2026-05-14.
As of now, the AQI in Horndean, Hampshire is 24, 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 2.37 μg/m3.
The PM10 concentration in Horndean, Hampshire is 6.046 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Horndean, Hampshire is 0.108 ppm.
Currently, Horndean, Hampshire has a sulfur dioxide (SO2) concentration of 0.53 ppb.
The current ozone (O3) level in Horndean, Hampshire at the moment is 25.822 ppm.
Nitrogen dioxide (NO2) level in Horndean, Hampshire at the moment is 3.53 ppb.
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