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)
25
Good
Hatfield, Hertfordshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.19 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.43 μg/m³
0
55
155
255
425
605+
27.42 ppb
0
55
71
86
201
201+
0.59 ppb
0
36
76
186
605
1005+
5.30 ppb
0
54
101
361
1250
2050+
0.31 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Hatfield, Hertfordshire
Hatfield, Hertfordshire
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AQI 31
Good
4.25μg/m³
PM2.5
14.08μg/m³
PM10
32.60ppb
O3
0.59ppb
SO2
5.35ppb
NO2
0.31ppm
CO
AQI 27
Good
3.88μg/m³
PM2.5
8.70μg/m³
PM10
29.42ppb
O3
0.61ppb
SO2
5.79ppb
NO2
0.31ppm
CO
AQI 29
Good
4.79μg/m³
PM2.5
12.08μg/m³
PM10
31.39ppb
O3
0.56ppb
SO2
8.24ppb
NO2
0.31ppm
CO
AQI 28
Good
5.33μg/m³
PM2.5
8.08μg/m³
PM10
30.25ppb
O3
0.55ppb
SO2
7.49ppb
NO2
0.31ppm
CO
AQI 29
Good
4.55μg/m³
PM2.5
13.20μg/m³
PM10
30.53ppb
O3
0.59ppb
SO2
6.37ppb
NO2
0.31ppm
CO
AQI 31
Good
3.70μg/m³
PM2.5
7.58μg/m³
PM10
32.53ppb
O3
0.58ppb
SO2
4.51ppb
NO2
0.31ppm
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 11:00:00 on 2026-09-27.
In the last 24 hours, the best air quality in Hatfield, Hertfordshire was observed at 11:00:00 on 2026-09-28.
As of now, the AQI in Hatfield, Hertfordshire is 25, indicating Good conditions.
Hatfield, Hertfordshire air has the highest levels of O3.
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 4.186 μg/m3.
The PM10 concentration in Hatfield, Hertfordshire is 10.432 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Hatfield, Hertfordshire is 0.312 ppm.
Currently, Hatfield, Hertfordshire has a sulfur dioxide (SO2) concentration of 0.594 ppb.
The current ozone (O3) level in Hatfield, Hertfordshire at the moment is 27.42 ppm.
Nitrogen dioxide (NO2) level in Hatfield, Hertfordshire at the moment is 5.304 ppb.
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