Stay updated with real-time air quality in Baldock, 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)
32
Good
Baldock, Hertfordshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.13 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.41 μg/m³
0
55
155
255
425
605+
34.63 ppb
0
55
71
86
201
201+
0.40 ppb
0
36
76
186
605
1005+
2.84 ppb
0
54
101
361
1250
2050+
0.02 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Baldock, Hertfordshire
Baldock, Hertfordshire
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AQI 32
Good
5.13μg/m³
PM2.5
12.41μg/m³
PM10
34.63ppb
O3
0.40ppb
SO2
2.84ppb
NO2
0.02ppm
CO
AQI 33
Good
5.71μg/m³
PM2.5
12.73μg/m³
PM10
32.60ppb
O3
0.48ppb
SO2
2.38ppb
NO2
0.02ppm
CO
AQI 32
Good
5.13μg/m³
PM2.5
12.41μg/m³
PM10
34.63ppb
O3
0.40ppb
SO2
2.84ppb
NO2
0.02ppm
CO
AQI 32
Good
5.13μg/m³
PM2.5
12.41μg/m³
PM10
34.63ppb
O3
0.40ppb
SO2
2.84ppb
NO2
0.02ppm
CO
AQI 33
Good
5.71μg/m³
PM2.5
12.73μg/m³
PM10
32.60ppb
O3
0.48ppb
SO2
2.38ppb
NO2
0.02ppm
CO
AQI 34
Good
3.89μg/m³
PM2.5
10.57μg/m³
PM10
36.71ppb
O3
0.51ppb
SO2
2.48ppb
NO2
0.02ppm
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 Baldock, Hertfordshire is updated every hour for accuracy.
In the past 24 hours, the air quality in Baldock, Hertfordshire was at its worst at 11:00:00 on 2026-03-28.
In the last 24 hours, the best air quality in Baldock, Hertfordshire was observed at 03:00:00 on 2026-03-29.
As of now, the AQI in Baldock, Hertfordshire is 32, indicating Good conditions.
Baldock, Hertfordshire air has the highest levels of O3.
Poor air quality in Baldock, Hertfordshire means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Baldock, Hertfordshire are currently 5.126 μg/m3.
The PM10 concentration in Baldock, Hertfordshire is 12.411 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Baldock, Hertfordshire is 0.019 ppm.
Currently, Baldock, Hertfordshire has a sulfur dioxide (SO2) concentration of 0.403 ppb.
The current ozone (O3) level in Baldock, Hertfordshire at the moment is 34.633 ppm.
Nitrogen dioxide (NO2) level in Baldock, Hertfordshire at the moment is 2.838 ppb.
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