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
8.31 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.43 μg/m³
0
55
155
255
425
605+
25.55 ppb
0
55
71
86
201
201+
0.81 ppb
0
36
76
186
605
1005+
3.04 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Harwich, Essex
Harwich, Essex
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AQI 24
Good
3.06μg/m³
PM2.5
13.16μg/m³
PM10
26.21ppb
O3
0.63ppb
SO2
3.08ppb
NO2
0.24ppm
CO
AQI 22
Good
2.95μg/m³
PM2.5
15.69μg/m³
PM10
23.63ppb
O3
0.68ppb
SO2
3.56ppb
NO2
0.24ppm
CO
AQI 25
Good
2.92μg/m³
PM2.5
15.57μg/m³
PM10
27.03ppb
O3
0.67ppb
SO2
3.56ppb
NO2
0.24ppm
CO
AQI 23
Good
2.56μg/m³
PM2.5
7.36μg/m³
PM10
25.22ppb
O3
0.68ppb
SO2
3.88ppb
NO2
0.24ppm
CO
AQI 24
Good
3.07μg/m³
PM2.5
10.89μg/m³
PM10
25.94ppb
O3
0.62ppb
SO2
2.96ppb
NO2
0.24ppm
CO
AQI 25
Good
2.74μg/m³
PM2.5
7.53μg/m³
PM10
26.62ppb
O3
0.68ppb
SO2
3.59ppb
NO2
0.24ppm
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 04:00:00 on 2025-07-22.
The best air quality in Harwich, Essex was recorded at 09:00:00 on 2025-07-22.
The real-time air quality index in Harwich, Essex is 22, currently categorized as Good.
The most common pollutant in Harwich, Essex is O3.
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 3.038 μg/m3.
The current PM10 levels in Harwich, Essex are 10.168 μg/m3.
The current carbon monoxide (CO) level in Harwich, Essex is 0.24 ppm.
The current sulfur dioxide (SO2) levels in Harwich, Essex are 0.653 ppb.
The current ozone (O3) levels at Harwich, Essex is 23.818 ppm.
The current nitrogen dioxide (NO2) levels at Harwich, Essex is 3.331 ppb.
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