Real-time air quality index in Harwich, Essex today
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)
31
Good
Harwich, Essex
Last updated: ... (Local time)
Common air pollutants in Harwich, Essex
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
4.00 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
9.92 μg/m³
0
55
155
255
425
605+
Ozone (O3)
33.69 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.39 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
3.39 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.31 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Harwich, Essex
Harwich, Essex
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Harwich, Essex air quality map: Real-time AQI near you
Air quality in nearby cities
Felixstowe, Suffolk
AQI 31
Good
4.00μg/m³
PM2.5
9.71μg/m³
PM10
33.39ppb
O3
0.37ppb
SO2
5.03ppb
NO2
0.31ppm
CO
Kesgrave, Suffolk
AQI 30
Good
4.02μg/m³
PM2.5
9.10μg/m³
PM10
32.01ppb
O3
0.38ppb
SO2
3.67ppb
NO2
0.31ppm
CO
Ipswich, Suffolk
AQI 29
Good
4.54μg/m³
PM2.5
8.87μg/m³
PM10
31.40ppb
O3
0.49ppb
SO2
3.22ppb
NO2
0.31ppm
CO
ClactononSea, Essex
AQI 32
Good
3.90μg/m³
PM2.5
10.35μg/m³
PM10
34.73ppb
O3
0.39ppb
SO2
3.20ppb
NO2
0.31ppm
CO
Woodbridge, Suffolk
AQI 30
Good
3.96μg/m³
PM2.5
9.27μg/m³
PM10
32.48ppb
O3
0.37ppb
SO2
5.26ppb
NO2
0.31ppm
CO
Colchester, Essex
AQI 26
Good
4.45μg/m³
PM2.5
10.39μg/m³
PM10
27.98ppb
O3
0.48ppb
SO2
2.72ppb
NO2
0.31ppm
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 Harwich, Essex updated?
Air quality data for Harwich, Essex is updated on an hourly basis.
When did Harwich, Essex experience the worst air quality in the last 24 hours?
The worst air quality in Harwich, Essex was recorded at 01:00:00 on 2026-09-28.
When did Harwich, Essex have its best air quality in the last 24 hours?
The best air quality in Harwich, Essex was recorded at 04:00:00 on 2026-09-28.
What is the real-time air quality index for Harwich, Essex?
The real-time air quality index in Harwich, Essex is 31, currently categorized as Good.
Which pollutant is found most often in Harwich, Essex?
The most common pollutant in Harwich, Essex is O3.
What can I do if the air quality in Harwich, Essex is poor?
If the air quality in Harwich, Essex is poor, limit outdoor activities and use a mask to safeguard your health.
What are the current PM2.5 levels in Harwich, Essex?
The measured PM2.5 levels in Harwich, Essex at present are 4 μg/m3.
What are the current PM10 levels at Harwich, Essex?
The current PM10 levels in Harwich, Essex are 9.92 μg/m3.
What are the current carbon monoxide (CO) levels at Harwich, Essex?
The current carbon monoxide (CO) level in Harwich, Essex is 0.312 ppm.
What are the current sulfur dioxide (SO2) levels at Harwich, Essex?
The current sulfur dioxide (SO2) levels in Harwich, Essex are 0.387 ppb.
What are the current ozone (O3) levels at Harwich, Essex?
The current ozone (O3) levels at Harwich, Essex is 33.692 ppm.
What are the current nitrogen dioxide (NO2) levels at Harwich, Essex?
The current nitrogen dioxide (NO2) levels at Harwich, Essex is 3.389 ppb.
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