Stay updated with real-time air quality in Hereford, County of Herefordshire 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)
44
Good
Hereford, County of Herefordshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.08 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.12 μg/m³
0
55
155
255
425
605+
27.02 ppb
0
55
71
86
201
201+
0.75 ppb
0
36
76
186
605
1005+
10.71 ppb
0
54
101
361
1250
2050+
0.80 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Hereford, County of Herefordshire
Hereford, County of Herefordshire
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AQI 38
Good
7.23μg/m³
PM2.5
13.14μg/m³
PM10
16.12ppb
O3
0.82ppb
SO2
13.10ppb
NO2
1.01ppm
CO
AQI 38
Good
7.33μg/m³
PM2.5
11.37μg/m³
PM10
16.05ppb
O3
0.76ppb
SO2
11.13ppb
NO2
1.01ppm
CO
AQI 44
Good
7.68μg/m³
PM2.5
8.58μg/m³
PM10
17.53ppb
O3
0.83ppb
SO2
13.91ppb
NO2
1.01ppm
CO
AQI 33
Good
6.33μg/m³
PM2.5
11.20μg/m³
PM10
24.48ppb
O3
0.77ppb
SO2
12.90ppb
NO2
1.01ppm
CO
AQI 38
Good
6.68μg/m³
PM2.5
11.79μg/m³
PM10
19.68ppb
O3
0.82ppb
SO2
13.43ppb
NO2
1.01ppm
CO
AQI 33
Good
6.18μg/m³
PM2.5
11.90μg/m³
PM10
19.78ppb
O3
0.82ppb
SO2
14.58ppb
NO2
1.01ppm
CO
Air quality and pollutant data for County of Herefordshire, 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 Hereford, County Of Herefordshire is updated every hour for accuracy.
In the past 24 hours, the air quality in Hereford, County Of Herefordshire was at its worst at 12:00:00 on 2026-02-12.
In the last 24 hours, the best air quality in Hereford, County Of Herefordshire was observed at 05:00:00 on 2026-02-11.
As of now, the AQI in Hereford, County Of Herefordshire is 44, indicating Good conditions.
Hereford, County Of Herefordshire air has the highest levels of PM2.5.
Poor air quality in Hereford, County Of Herefordshire means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Hereford, County Of Herefordshire are currently 8.078 μg/m3.
The PM10 concentration in Hereford, County Of Herefordshire is 17.117 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Hereford, County Of Herefordshire is 0.803 ppm.
Currently, Hereford, County Of Herefordshire has a sulfur dioxide (SO2) concentration of 0.747 ppb.
The current ozone (O3) level in Hereford, County Of Herefordshire at the moment is 27.022 ppm.
Nitrogen dioxide (NO2) level in Hereford, County Of Herefordshire at the moment is 10.707 ppb.
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