Stay updated with real-time air quality in Saffron Walden, Essex 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)
26
Good
Saffron Walden, Essex
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.03 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
6.52 μg/m³
0
55
155
255
425
605+
27.88 ppb
0
55
71
86
201
201+
0.87 ppb
0
36
76
186
605
1005+
5.34 ppb
0
54
101
361
1250
2050+
0.11 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Saffron Walden, Essex
Saffron Walden, Essex
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AQI 25
Good
3.24μg/m³
PM2.5
8.40μg/m³
PM10
26.86ppb
O3
0.96ppb
SO2
3.20ppb
NO2
0.12ppm
CO
AQI 24
Good
4.38μg/m³
PM2.5
8.31μg/m³
PM10
26.15ppb
O3
1.00ppb
SO2
3.47ppb
NO2
0.12ppm
CO
AQI 24
Good
3.69μg/m³
PM2.5
8.17μg/m³
PM10
26.08ppb
O3
1.00ppb
SO2
4.80ppb
NO2
0.12ppm
CO
AQI 25
Good
2.60μg/m³
PM2.5
6.37μg/m³
PM10
26.92ppb
O3
0.93ppb
SO2
3.67ppb
NO2
0.12ppm
CO
AQI 26
Good
3.66μg/m³
PM2.5
6.04μg/m³
PM10
28.08ppb
O3
1.08ppb
SO2
7.42ppb
NO2
0.12ppm
CO
AQI 24
Good
4.38μg/m³
PM2.5
8.31μg/m³
PM10
26.15ppb
O3
1.00ppb
SO2
3.47ppb
NO2
0.12ppm
CO
Air quality data and pollutant measurements for Essex, UK adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Saffron Walden, Essex is updated every hour.
The worst air quality in Saffron Walden, Essex in the last 24 hours was observed at 08:00:00 on 2026-05-13.
In the last 24 hrs, the best air quality in Saffron Walden, Essex was observed at 08:00:00 on 2026-05-14.
The current air quality in Saffron Walden, Essex is 26, categorized as Good based on real-time data.
The most common pollutant in Saffron Walden, Essex is O3.
If the air quality in Saffron Walden, Essex is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Saffron Walden, Essex is 3.032 μg/m3.
The current PM10 concentration at Saffron Walden, Essex is 6.517 μg/m3.
The current carbon monoxide (CO) concentration at Saffron Walden, Essex is 0.108 ppm.
The current sulfur dioxide (SO2) concentration at Saffron Walden, Essex is 0.873 ppb.
The current ozone (O3) concentration at Saffron Walden, Essex is 27.882 ppm.
The current nitrogen dioxide (NO2) concentration at Saffron Walden, Essex is 5.342 ppb.
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