Stay updated with real-time air quality in Romsey, 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)
56
Moderate
Romsey, Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
11.69 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
23.47 μg/m³
0
55
155
255
425
605+
37.65 ppb
0
55
71
86
201
201+
1.72 ppb
0
36
76
186
605
1005+
14.33 ppb
0
54
101
361
1250
2050+
0.04 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Romsey, Hampshire
Romsey, Hampshire
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AQI 56
Moderate
11.60μg/m³
PM2.5
22.04μg/m³
PM10
34.28ppb
O3
1.03ppb
SO2
5.66ppb
NO2
0.03ppm
CO
AQI 54
Moderate
11.19μg/m³
PM2.5
22.76μg/m³
PM10
33.19ppb
O3
0.99ppb
SO2
7.58ppb
NO2
0.04ppm
CO
AQI 56
Moderate
11.62μg/m³
PM2.5
21.91μg/m³
PM10
34.51ppb
O3
1.05ppb
SO2
5.36ppb
NO2
0.03ppm
CO
AQI 56
Moderate
11.61μg/m³
PM2.5
21.82μg/m³
PM10
34.47ppb
O3
1.07ppb
SO2
5.27ppb
NO2
0.03ppm
CO
AQI 56
Moderate
11.68μg/m³
PM2.5
21.93μg/m³
PM10
33.91ppb
O3
1.09ppb
SO2
5.11ppb
NO2
0.03ppm
CO
AQI 52
Moderate
9.55μg/m³
PM2.5
20.96μg/m³
PM10
39.52ppb
O3
0.94ppb
SO2
4.22ppb
NO2
0.03ppm
CO
Air quality data and pollutant measurements for Hampshire, UK adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Romsey, Hampshire is updated every hour.
The worst air quality in Romsey, Hampshire in the last 24 hours was observed at 07:00:00 on 2026-08-13.
In the last 24 hrs, the best air quality in Romsey, Hampshire was observed at 07:00:00 on 2026-08-14.
The current air quality in Romsey, Hampshire is 56, categorized as Moderate based on real-time data.
The most common pollutant in Romsey, Hampshire is PM2.5.
If the air quality in Romsey, Hampshire is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Romsey, Hampshire is 11.693 μg/m3.
The current PM10 concentration at Romsey, Hampshire is 23.474 μg/m3.
The current carbon monoxide (CO) concentration at Romsey, Hampshire is 0.035 ppm.
The current sulfur dioxide (SO2) concentration at Romsey, Hampshire is 1.718 ppb.
The current ozone (O3) concentration at Romsey, Hampshire is 37.646 ppm.
The current nitrogen dioxide (NO2) concentration at Romsey, Hampshire is 14.33 ppb.
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