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)
26
Good
Horndean, Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.35 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
7.84 μg/m³
0
55
155
255
425
605+
27.65 ppb
0
55
71
86
201
201+
0.45 ppb
0
36
76
186
605
1005+
7.71 ppb
0
54
101
361
1250
2050+
0.31 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Horndean, Hampshire
Horndean, Hampshire
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AQI 26
Good
3.33μg/m³
PM2.5
7.83μg/m³
PM10
27.63ppb
O3
0.45ppb
SO2
7.56ppb
NO2
0.31ppm
CO
AQI 26
Good
3.32μg/m³
PM2.5
7.82μg/m³
PM10
27.65ppb
O3
0.45ppb
SO2
7.42ppb
NO2
0.31ppm
CO
AQI 25
Good
3.55μg/m³
PM2.5
15.05μg/m³
PM10
26.93ppb
O3
0.46ppb
SO2
6.74ppb
NO2
0.31ppm
CO
AQI 28
Good
3.70μg/m³
PM2.5
10.50μg/m³
PM10
29.87ppb
O3
0.41ppb
SO2
6.56ppb
NO2
0.31ppm
CO
AQI 26
Good
3.39μg/m³
PM2.5
7.84μg/m³
PM10
27.78ppb
O3
0.45ppb
SO2
7.69ppb
NO2
0.31ppm
CO
AQI 26
Good
3.54μg/m³
PM2.5
7.93μg/m³
PM10
27.79ppb
O3
0.44ppb
SO2
8.92ppb
NO2
0.31ppm
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 11:00:00 on 2026-09-27.
In the last 24 hours, the best air quality in Horndean, Hampshire was observed at 04:00:00 on 2026-09-28.
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 3.349 μg/m3.
The PM10 concentration in Horndean, Hampshire is 7.836 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Horndean, Hampshire is 0.312 ppm.
Currently, Horndean, Hampshire has a sulfur dioxide (SO2) concentration of 0.445 ppb.
The current ozone (O3) level in Horndean, Hampshire at the moment is 27.647 ppm.
Nitrogen dioxide (NO2) level in Horndean, Hampshire at the moment is 7.71 ppb.
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