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)
33
Good
Horndean, Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.01 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.67 μg/m³
0
55
155
255
425
605+
20.87 ppb
0
55
71
86
201
201+
0.47 ppb
0
36
76
186
605
1005+
6.44 ppb
0
54
101
361
1250
2050+
0.06 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Horndean, Hampshire
Horndean, Hampshire
Scroll To Air Quality MapLoading...
AQI 33
Good
6.07μg/m³
PM2.5
11.32μg/m³
PM10
26.43ppb
O3
0.47ppb
SO2
4.89ppb
NO2
0.30ppm
CO
AQI 33
Good
6.05μg/m³
PM2.5
11.31μg/m³
PM10
26.52ppb
O3
0.47ppb
SO2
4.82ppb
NO2
0.30ppm
CO
AQI 38
Good
6.74μg/m³
PM2.5
10.15μg/m³
PM10
23.48ppb
O3
0.50ppb
SO2
6.55ppb
NO2
0.30ppm
CO
AQI 38
Good
6.85μg/m³
PM2.5
10.00μg/m³
PM10
21.65ppb
O3
0.48ppb
SO2
3.74ppb
NO2
0.30ppm
CO
AQI 33
Good
6.08μg/m³
PM2.5
11.47μg/m³
PM10
26.21ppb
O3
0.46ppb
SO2
5.56ppb
NO2
0.30ppm
CO
AQI 33
Good
6.21μg/m³
PM2.5
11.62μg/m³
PM10
25.64ppb
O3
0.44ppb
SO2
6.66ppb
NO2
0.30ppm
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 09:00:00 on 2025-11-07.
In the last 24 hours, the best air quality in Horndean, Hampshire was observed at 11:00:00 on 2025-11-07.
As of now, the AQI in Horndean, Hampshire is 33, indicating Good conditions.
Horndean, Hampshire air has the highest levels of PM2.5.
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 6.08 μg/m3.
The PM10 concentration in Horndean, Hampshire is 11.338 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Horndean, Hampshire is 0.296 ppm.
Currently, Horndean, Hampshire has a sulfur dioxide (SO2) concentration of 0.463 ppb.
The current ozone (O3) level in Horndean, Hampshire at the moment is 26.34 ppm.
Nitrogen dioxide (NO2) level in Horndean, Hampshire at the moment is 5.068 ppb.
All Rights Reserved © Ambee Inc. 2025