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)
44
Good
Halstead, Essex
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.35 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.57 μg/m³
0
55
155
255
425
605+
26.94 ppb
0
55
71
86
201
201+
0.45 ppb
0
36
76
186
605
1005+
4.07 ppb
0
54
101
361
1250
2050+
0.76 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Halstead, Essex
Halstead, Essex
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AQI 49
Good
8.82μg/m³
PM2.5
13.76μg/m³
PM10
26.09ppb
O3
0.45ppb
SO2
8.21ppb
NO2
0.76ppm
CO
AQI 44
Good
8.21μg/m³
PM2.5
13.20μg/m³
PM10
27.55ppb
O3
0.46ppb
SO2
4.44ppb
NO2
0.76ppm
CO
AQI 49
Good
8.57μg/m³
PM2.5
13.53μg/m³
PM10
26.44ppb
O3
0.45ppb
SO2
7.98ppb
NO2
0.76ppm
CO
AQI 44
Good
8.10μg/m³
PM2.5
13.49μg/m³
PM10
27.89ppb
O3
0.45ppb
SO2
4.22ppb
NO2
0.76ppm
CO
AQI 44
Good
8.18μg/m³
PM2.5
12.98μg/m³
PM10
25.66ppb
O3
0.45ppb
SO2
7.41ppb
NO2
0.76ppm
CO
AQI 49
Good
8.83μg/m³
PM2.5
13.55μg/m³
PM10
22.54ppb
O3
0.46ppb
SO2
12.28ppb
NO2
0.76ppm
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 01:00:00, 2026-11-12.
The best air quality in Halstead, Essex was observed at 12:00:00 on 2026-11-12.
The air quality in Halstead, Essex right now is Good, with an AQI of 44.
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 8.347 μg/m3.
Halstead, Essex currently has a PM10 concentration of 13.573 μg/m3.
The current carbon monoxide (CO) level in Halstead, Essex is 0.762 ppm.
The current sulfur dioxide (SO2) concentration in Halstead, Essex is 0.453 ppb.
Halstead, Essex currently has an ozone (O3) concentration of 26.942 ppm.
The current level of nitrogen dioxide (NO2) in Halstead, Essex is 4.068 ppb.
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