Real-time air quality index in Witham, Essex today
Stay updated with real-time air quality in Witham, 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)
27
Good
Witham, Essex
Last updated: ... (Local time)
Common air pollutants in Witham, Essex
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
5.18 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
11.52 μg/m³
0
55
155
255
425
605+
Ozone (O3)
21.35 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.89 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
10.96 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.53 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Witham, Essex
Witham, Essex
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Witham, Essex air quality map: Real-time AQI near you
Air quality in nearby cities
Maldon, Essex
AQI 44
Good
8.10μg/m³
PM2.5
11.78μg/m³
PM10
18.93ppb
O3
0.89ppb
SO2
10.13ppb
NO2
0.63ppm
CO
Braintree, Essex
AQI 44
Good
8.03μg/m³
PM2.5
25.93μg/m³
PM10
22.98ppb
O3
0.82ppb
SO2
9.29ppb
NO2
0.63ppm
CO
Chelmsford, Essex
AQI 54
Moderate
11.32μg/m³
PM2.5
23.92μg/m³
PM10
21.68ppb
O3
0.86ppb
SO2
15.25ppb
NO2
0.63ppm
CO
Halstead, Essex
AQI 44
Good
7.78μg/m³
PM2.5
16.01μg/m³
PM10
21.70ppb
O3
0.80ppb
SO2
9.27ppb
NO2
0.63ppm
CO
South Woodham Ferrers, Essex
AQI 38
Good
6.58μg/m³
PM2.5
11.54μg/m³
PM10
23.63ppb
O3
0.94ppb
SO2
9.96ppb
NO2
0.63ppm
CO
Colchester, Essex
AQI 33
Good
5.63μg/m³
PM2.5
14.33μg/m³
PM10
22.69ppb
O3
0.85ppb
SO2
10.45ppb
NO2
0.63ppm
CO
How accurate is Essex, UK air quality data?
Air quality measurements for Essex, 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
Frequently asked questions
How frequently is the air quality data for Witham, Essex updated?
Air quality data for Witham, Essex is updated on an hourly basis.
When did Witham, Essex experience the worst air quality in the last 24 hours?
The worst air quality in Witham, Essex was recorded at 02:00:00 on 2026-02-12.
When did Witham, Essex have its best air quality in the last 24 hours?
The best air quality in Witham, Essex was recorded at 03:00:00 on 2026-02-11.
What is the real-time air quality index for Witham, Essex?
The real-time air quality index in Witham, Essex is 27, currently categorized as Good.
Which pollutant is found most often in Witham, Essex?
The most common pollutant in Witham, Essex is PM2.5.
What can I do if the air quality in Witham, Essex is poor?
If the air quality in Witham, Essex is poor, limit outdoor activities and use a mask to safeguard your health.
What are the current PM2.5 levels in Witham, Essex?
The measured PM2.5 levels in Witham, Essex at present are 5.181 μg/m3.
What are the current PM10 levels at Witham, Essex?
The current PM10 levels in Witham, Essex are 11.524 μg/m3.
What are the current carbon monoxide (CO) levels at Witham, Essex?
The current carbon monoxide (CO) level in Witham, Essex is 0.531 ppm.
What are the current sulfur dioxide (SO2) levels at Witham, Essex?
The current sulfur dioxide (SO2) levels in Witham, Essex are 0.887 ppb.
What are the current ozone (O3) levels at Witham, Essex?
The current ozone (O3) levels at Witham, Essex is 21.346 ppm.
What are the current nitrogen dioxide (NO2) levels at Witham, Essex?
The current nitrogen dioxide (NO2) levels at Witham, Essex is 10.96 ppb.
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