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

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.18 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.22 μg/m³
0
55
155
255
425
605+
8.52 ppb
0
55
71
86
201
201+
0.64 ppb
0
36
76
186
605
1005+
5.96 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Harwich, Essex
Harwich, Essex
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AQI 38
Good
7.21μg/m³
PM2.5
9.35μg/m³
PM10
9.03ppb
O3
0.81ppb
SO2
5.73ppb
NO2
0.29ppm
CO
AQI 38
Good
7.31μg/m³
PM2.5
12.35μg/m³
PM10
9.43ppb
O3
0.66ppb
SO2
8.84ppb
NO2
0.29ppm
CO
AQI 49
Good
8.54μg/m³
PM2.5
13.16μg/m³
PM10
6.45ppb
O3
0.66ppb
SO2
7.61ppb
NO2
0.29ppm
CO
AQI 44
Good
7.73μg/m³
PM2.5
14.35μg/m³
PM10
7.09ppb
O3
0.66ppb
SO2
4.72ppb
NO2
0.29ppm
CO
AQI 33
Good
6.33μg/m³
PM2.5
8.89μg/m³
PM10
8.36ppb
O3
0.75ppb
SO2
5.11ppb
NO2
0.29ppm
CO
AQI 44
Good
7.83μg/m³
PM2.5
12.62μg/m³
PM10
9.25ppb
O3
0.64ppb
SO2
4.81ppb
NO2
0.29ppm
CO
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
Air quality data for Harwich, Essex is updated on an hourly basis.
The worst air quality in Harwich, Essex was recorded at 10:00:00 on 2026-10-07.
The best air quality in Harwich, Essex was recorded at 03:00:00 on 2026-10-06.
The real-time air quality index in Harwich, Essex is 49, currently categorized as Good.
The most common pollutant in Harwich, Essex is PM2.5.
If the air quality in Harwich, Essex is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Harwich, Essex at present are 8.778 μg/m3.
The current PM10 levels in Harwich, Essex are 11.752 μg/m3.
The current carbon monoxide (CO) level in Harwich, Essex is 0.295 ppm.
The current sulfur dioxide (SO2) levels in Harwich, Essex are 0.71 ppb.
The current ozone (O3) levels at Harwich, Essex is 8.574 ppm.
The current nitrogen dioxide (NO2) levels at Harwich, Essex is 6.885 ppb.
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