Stay updated with real-time air quality in Royston, 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)
28
Good
Royston, Hertfordshire
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.27 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.37 μg/m³
0
55
155
255
425
605+
30.13 ppb
0
55
71
86
201
201+
0.69 ppb
0
36
76
186
605
1005+
5.86 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Royston, Hertfordshire
Royston, Hertfordshire
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AQI 21
Good
3.33μg/m³
PM2.5
10.75μg/m³
PM10
22.97ppb
O3
0.60ppb
SO2
5.43ppb
NO2
0.15ppm
CO
AQI 21
Good
3.33μg/m³
PM2.5
10.75μg/m³
PM10
22.97ppb
O3
0.60ppb
SO2
5.43ppb
NO2
0.15ppm
CO
AQI 23
Good
3.16μg/m³
PM2.5
10.86μg/m³
PM10
25.33ppb
O3
0.60ppb
SO2
5.26ppb
NO2
0.15ppm
CO
AQI 21
Good
3.33μg/m³
PM2.5
10.75μg/m³
PM10
22.97ppb
O3
0.60ppb
SO2
5.43ppb
NO2
0.15ppm
CO
AQI 27
Good
3.59μg/m³
PM2.5
7.07μg/m³
PM10
29.29ppb
O3
0.77ppb
SO2
4.22ppb
NO2
0.18ppm
CO
AQI 24
Good
3.20μg/m³
PM2.5
9.63μg/m³
PM10
26.43ppb
O3
0.70ppb
SO2
5.40ppb
NO2
0.18ppm
CO
Air quality measurements for Hertfordshire, UK meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Royston, Hertfordshire is updated on an hourly basis.
The worst air quality in Royston, Hertfordshire was recorded at 05:00:00 on 2025-06-07.
The best air quality in Royston, Hertfordshire was recorded at 12:00:00 on 2025-06-06.
The real-time air quality index in Royston, Hertfordshire is 28, currently categorized as Good.
The most common pollutant in Royston, Hertfordshire is O3.
If the air quality in Royston, Hertfordshire is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Royston, Hertfordshire at present are 3.265 μg/m3.
The current PM10 levels in Royston, Hertfordshire are 10.372 μg/m3.
The current carbon monoxide (CO) level in Royston, Hertfordshire is 0.175 ppm.
The current sulfur dioxide (SO2) levels in Royston, Hertfordshire are 0.691 ppb.
The current ozone (O3) levels at Royston, Hertfordshire is 30.132 ppm.
The current nitrogen dioxide (NO2) levels at Royston, Hertfordshire is 5.864 ppb.
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