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)
49
Good
Horndean, Hampshire
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
9.06 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.35 μg/m³
0
55
155
255
425
605+
27.20 ppb
0
55
71
86
201
201+
0.54 ppb
0
36
76
186
605
1005+
3.06 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Horndean, Hampshire
Horndean, Hampshire
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AQI 18
Good
2.46μg/m³
PM2.5
5.22μg/m³
PM10
18.95ppb
O3
0.66ppb
SO2
4.38ppb
NO2
0.05ppm
CO
AQI 18
Good
2.45μg/m³
PM2.5
5.19μg/m³
PM10
18.99ppb
O3
0.66ppb
SO2
4.38ppb
NO2
0.05ppm
CO
AQI 18
Good
2.60μg/m³
PM2.5
7.20μg/m³
PM10
19.32ppb
O3
0.68ppb
SO2
4.84ppb
NO2
0.04ppm
CO
AQI 19
Good
2.65μg/m³
PM2.5
7.19μg/m³
PM10
19.52ppb
O3
0.67ppb
SO2
3.52ppb
NO2
0.04ppm
CO
AQI 18
Good
2.51μg/m³
PM2.5
5.39μg/m³
PM10
18.94ppb
O3
0.66ppb
SO2
4.28ppb
NO2
0.05ppm
CO
AQI 18
Good
2.62μg/m³
PM2.5
5.78μg/m³
PM10
18.62ppb
O3
0.65ppb
SO2
4.19ppb
NO2
0.05ppm
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 2025-07-22.
In the last 24 hours, the best air quality in Horndean, Hampshire was observed at 05:00:00 on 2025-07-23.
As of now, the AQI in Horndean, Hampshire is 17, 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 2.473 μg/m3.
The PM10 concentration in Horndean, Hampshire is 5.274 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Horndean, Hampshire is 0.039 ppm.
Currently, Horndean, Hampshire has a sulfur dioxide (SO2) concentration of 0.657 ppb.
The current ozone (O3) level in Horndean, Hampshire at the moment is 17.847 ppm.
Nitrogen dioxide (NO2) level in Horndean, Hampshire at the moment is 5.61 ppb.
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