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)
29
Good
Horndean, Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.71 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
9.68 μg/m³
0
55
155
255
425
605+
31.04 ppb
0
55
71
86
201
201+
0.56 ppb
0
36
76
186
605
1005+
4.68 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Horndean, Hampshire
Horndean, Hampshire
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AQI 28
Good
3.69μg/m³
PM2.5
9.66μg/m³
PM10
29.86ppb
O3
0.53ppb
SO2
3.09ppb
NO2
0.17ppm
CO
AQI 28
Good
3.67μg/m³
PM2.5
9.64μg/m³
PM10
29.88ppb
O3
0.53ppb
SO2
3.02ppb
NO2
0.17ppm
CO
AQI 28
Good
3.83μg/m³
PM2.5
10.84μg/m³
PM10
29.63ppb
O3
0.50ppb
SO2
5.24ppb
NO2
0.17ppm
CO
AQI 28
Good
4.14μg/m³
PM2.5
9.86μg/m³
PM10
30.37ppb
O3
0.49ppb
SO2
3.21ppb
NO2
0.17ppm
CO
AQI 28
Good
3.72μg/m³
PM2.5
9.68μg/m³
PM10
29.89ppb
O3
0.53ppb
SO2
3.37ppb
NO2
0.17ppm
CO
AQI 28
Good
3.89μg/m³
PM2.5
9.89μg/m³
PM10
29.80ppb
O3
0.54ppb
SO2
4.14ppb
NO2
0.17ppm
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 01:00:00 on 2026-06-29.
In the last 24 hours, the best air quality in Horndean, Hampshire was observed at 06:00:00 on 2026-06-28.
As of now, the AQI in Horndean, Hampshire is 29, 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 3.709 μg/m3.
The PM10 concentration in Horndean, Hampshire is 9.679 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Horndean, Hampshire is 0.174 ppm.
Currently, Horndean, Hampshire has a sulfur dioxide (SO2) concentration of 0.564 ppb.
The current ozone (O3) level in Horndean, Hampshire at the moment is 31.038 ppm.
Nitrogen dioxide (NO2) level in Horndean, Hampshire at the moment is 4.676 ppb.
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