Stay updated with real-time air quality in Hatfield, Hertfordshire 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
Hatfield, Hertfordshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.02 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
22.09 μg/m³
0
55
155
255
425
605+
43.93 ppb
0
55
71
86
201
201+
0.65 ppb
0
36
76
186
605
1005+
17.15 ppb
0
54
101
361
1250
2050+
0.01 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Hatfield, Hertfordshire
Hatfield, Hertfordshire
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AQI 49
Good
8.99μg/m³
PM2.5
23.33μg/m³
PM10
40.37ppb
O3
0.65ppb
SO2
14.16ppb
NO2
0.01ppm
CO
AQI 49
Good
9.35μg/m³
PM2.5
25.20μg/m³
PM10
52.08ppb
O3
0.60ppb
SO2
16.18ppb
NO2
0.01ppm
CO
AQI 52
Moderate
10.22μg/m³
PM2.5
28.00μg/m³
PM10
50.54ppb
O3
0.64ppb
SO2
16.96ppb
NO2
0.00ppm
CO
AQI 56
Moderate
11.52μg/m³
PM2.5
24.45μg/m³
PM10
51.47ppb
O3
0.57ppb
SO2
11.52ppb
NO2
0.01ppm
CO
AQI 44
Good
8.41μg/m³
PM2.5
23.75μg/m³
PM10
37.86ppb
O3
0.65ppb
SO2
24.34ppb
NO2
0.01ppm
CO
AQI 49
Good
8.92μg/m³
PM2.5
22.86μg/m³
PM10
50.07ppb
O3
0.64ppb
SO2
7.26ppb
NO2
0.00ppm
CO
Air quality and pollutant data for Hertfordshire, 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 Hatfield, Hertfordshire is updated every hour for accuracy.
In the past 24 hours, the air quality in Hatfield, Hertfordshire was at its worst at 06:00:00 on 2026-08-13.
In the last 24 hours, the best air quality in Hatfield, Hertfordshire was observed at 12:00:00 on 2026-08-14.
As of now, the AQI in Hatfield, Hertfordshire is 49, indicating Good conditions.
Hatfield, Hertfordshire air has the highest levels of PM2.5.
Poor air quality in Hatfield, Hertfordshire means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Hatfield, Hertfordshire are currently 9.018 μg/m3.
The PM10 concentration in Hatfield, Hertfordshire is 22.088 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Hatfield, Hertfordshire is 0.007 ppm.
Currently, Hatfield, Hertfordshire has a sulfur dioxide (SO2) concentration of 0.648 ppb.
The current ozone (O3) level in Hatfield, Hertfordshire at the moment is 43.927 ppm.
Nitrogen dioxide (NO2) level in Hatfield, Hertfordshire at the moment is 17.147 ppb.
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