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)
22
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)
3.80 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
17.17 μg/m³
0
55
155
255
425
605+
Ozone (O3)
15.91 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.59 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
6.48 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.02 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
7.54μg/m³
PM2.5
20.52μg/m³
PM10
16.13ppb
O3
0.60ppb
SO2
7.92ppb
NO2
0.02ppm
CO
Braintree, Essex
AQI 67
Moderate
18.14μg/m³
PM2.5
30.59μg/m³
PM10
17.51ppb
O3
0.58ppb
SO2
6.75ppb
NO2
0.01ppm
CO
Chelmsford, Essex
AQI 67
Moderate
18.16μg/m³
PM2.5
40.16μg/m³
PM10
16.09ppb
O3
0.58ppb
SO2
6.65ppb
NO2
0.01ppm
CO
Halstead, Essex
AQI 67
Moderate
18.14μg/m³
PM2.5
40.61μg/m³
PM10
17.42ppb
O3
0.58ppb
SO2
6.13ppb
NO2
0.02ppm
CO
South Woodham Ferrers, Essex
AQI 52
Moderate
10.12μg/m³
PM2.5
17.88μg/m³
PM10
13.47ppb
O3
0.62ppb
SO2
10.94ppb
NO2
0.02ppm
CO
Colchester, Essex
AQI 52
Moderate
10.20μg/m³
PM2.5
16.41μg/m³
PM10
13.11ppb
O3
0.60ppb
SO2
11.38ppb
NO2
0.02ppm
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 05:00:00 on 2026-01-18.
When did Witham, Essex have its best air quality in the last 24 hours?
The best air quality in Witham, Essex was recorded at 06:00:00 on 2026-01-18.
What is the real-time air quality index for Witham, Essex?
The real-time air quality index in Witham, Essex is 22, 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 3.8 μg/m3.
What are the current PM10 levels at Witham, Essex?
The current PM10 levels in Witham, Essex are 17.167 μg/m3.
What are the current carbon monoxide (CO) levels at Witham, Essex?
The current carbon monoxide (CO) level in Witham, Essex is 0.017 ppm.
What are the current sulfur dioxide (SO2) levels at Witham, Essex?
The current sulfur dioxide (SO2) levels in Witham, Essex are 0.59 ppb.
What are the current ozone (O3) levels at Witham, Essex?
The current ozone (O3) levels at Witham, Essex is 15.908 ppm.
What are the current nitrogen dioxide (NO2) levels at Witham, Essex?
The current nitrogen dioxide (NO2) levels at Witham, Essex is 6.483 ppb.
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