Stay updated with real-time air quality in Halstead, 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)
38
Good
Halstead, Essex
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.60 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
25.71 μg/m³
0
55
155
255
425
605+
19.97 ppb
0
55
71
86
201
201+
0.85 ppb
0
36
76
186
605
1005+
7.37 ppb
0
54
101
361
1250
2050+
0.53 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Halstead, Essex
Halstead, Essex
Scroll To Air Quality MapLoading...
AQI 44
Good
8.03μg/m³
PM2.5
25.93μg/m³
PM10
22.98ppb
O3
0.82ppb
SO2
9.29ppb
NO2
0.63ppm
CO
AQI 33
Good
6.22μg/m³
PM2.5
25.51μg/m³
PM10
21.50ppb
O3
0.79ppb
SO2
10.15ppb
NO2
0.63ppm
CO
AQI 54
Moderate
11.13μg/m³
PM2.5
26.11μg/m³
PM10
22.37ppb
O3
0.84ppb
SO2
9.63ppb
NO2
0.63ppm
CO
AQI 33
Good
5.63μg/m³
PM2.5
14.33μg/m³
PM10
22.69ppb
O3
0.85ppb
SO2
10.45ppb
NO2
0.63ppm
CO
AQI 52
Moderate
9.83μg/m³
PM2.5
24.95μg/m³
PM10
24.23ppb
O3
0.72ppb
SO2
9.79ppb
NO2
0.63ppm
CO
AQI 38
Good
6.58μg/m³
PM2.5
27.33μg/m³
PM10
15.42ppb
O3
0.79ppb
SO2
14.55ppb
NO2
0.63ppm
CO
The air quality data for Essex, UK is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Halstead, Essex are available every hour.
Halstead, Essex experienced its worst air quality at 12:00:00, 2026-02-12.
The best air quality in Halstead, Essex was observed at 05:00:00 on 2026-02-11.
The air quality in Halstead, Essex right now is Good, with an AQI of 38.
In Halstead, Essex, PM2.5 is the most frequently found pollutant.
When air quality in Halstead, Essex is compromised, staying indoors and wearing a mask can reduce health risks.
Halstead, Essex currently has a PM2.5 concentration of 6.603 μg/m3.
Halstead, Essex currently has a PM10 concentration of 25.714 μg/m3.
The current carbon monoxide (CO) level in Halstead, Essex is 0.531 ppm.
The current sulfur dioxide (SO2) concentration in Halstead, Essex is 0.85 ppb.
Halstead, Essex currently has an ozone (O3) concentration of 19.972 ppm.
The current level of nitrogen dioxide (NO2) in Halstead, Essex is 7.37 ppb.
All Rights Reserved © Ambee Inc. 2025