Air pollution - Cities and FUAs — Population exposure to PM10 in Colchester

Colchester: Air pollution - Cities and FUAs — Population exposure to PM10 was 35.71 Microgrammes per cubic metre in 2025. ◆ Volatile

Latest (2025)
35.71 Microgrammes per cubic metre
Change on year
up 6.0%
Rank
774th
of 1316 regions
All-time high
48.27 Microgrammes per cubic metre
in 2021
All-time low
0.218 Microgrammes per cubic metre
in 2023
Years of data
5
2021–2025

Air pollution - Cities and FUAs — Population exposure to PM10 in Colchester, 2021–2025

010203040502021202320252021: 48.3 Microgrammes per cubic metre2022: 41.8 Microgrammes per cubic metre2023: 0.218 Microgrammes per cubic metre2024: 33.7 Microgrammes per cubic metre2025: 35.7 Microgrammes per cubic metre

Source: Organisation for Economic Co-operation and Development. Measured in Microgrammes per cubic metre.

Analysis

Colchester recorded 35.71 Microgrammes per cubic metre for air pollution - cities and fuas — population exposure to pm10 in 2025.

Compared with earlier readings it is up 6.0% on the previous year and down 26.0% over five years.

That places Colchester 774th out of 1316 regions with data for 2025, putting it in the middle of the range.

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Frequently asked questions

What is air pollution - cities and fuas — population exposure to pm10 in Colchester?
Air pollution - cities and fuas — population exposure to pm10 in Colchester was 35.71 Microgrammes per cubic metre in 2025, according to Organisation for Economic Co-operation and Development.
What is the highest air pollution - cities and fuas — population exposure to pm10 recorded in Colchester?
The highest recorded value was 48.27 Microgrammes per cubic metre in 2021.
What is the lowest air pollution - cities and fuas — population exposure to pm10 recorded in Colchester?
The lowest recorded value was 0.218 Microgrammes per cubic metre in 2023.
How does Colchester rank for air pollution - cities and fuas — population exposure to pm10?
Colchester ranks 774th out of 1316 regions with data for 2025.
Where does this Colchester data come from?
The figures come from Organisation for Economic Co-operation and Development, published as part of Air pollution - Cities and FUAs — Population exposure to PM10. Statizoid updates them automatically from the source API.

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Air pollution - Cities and FUAs — Population exposure to PM10 in Colchester. Statizoid, drawing on Organisation for Economic Co-operation and Development. Retrieved 21 August 2026, from https://environment.statizoid.com/stat/air-pollution-cities-and-fuas-population-exposure-to-pm10/colchester/

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About this data

Indicator
Air pollution - Cities and FUAs — Population exposure to PM10
Unit
Microgrammes per cubic metre
Source
Organisation for Economic Co-operation and Development
Licence
OECD Terms and Conditions (attribution required)
Coverage
1,326 places, 6,630 data points, 2021–2025
Last refreshed

This dataset provides indicators of PM2.5, PM10 (particulate matter), ozone and nitrogen dioxide air pollution in FUAs and cities. Data sources and methodology Air pollution exposure is estimated using Plume Labs air pollution exposure grids for 3 air pollutants: nitrogen dioxide (NO2), fine particulate matters (PM2.5) and coarse particulate matters (PM10). The OECD obtained this dataset thanks to the Development Data Partnership, a collaboration between international organisations and technology companies, facilitating the efficient and responsible use of third-party data in international development. Average population exposure to air pollution is estimated at the local scale by computing the population-weighted average air pollutant concentration, using the Global Human Settlement Layer population grid (GHS-POP). PlumeLabs is used as it provides global, harmonised air pollution grids ensuring international comparability, complete subnational coverage, and consistent measurement of multiple pollutants, including in areas where national monitoring networks are sparse or incomplete. These estimates may differ from official subnational air quality statistics due to differences in methodological approaches, such as the use of modelled, top down pollution surfaces versus ground based monitoring networks, as well as variations in input data sources, spatial resolution, satellite retrieval methods, and the models used to simulate or interpolate pollutant concentrations. Defining FUAs and cities The OECD, in cooperation with the EU, has developed a harmonised definition of functional urban areas (FUAs) to capture the economic and functional reach of cities based on daily commuting patterns (OECD, 2012). FUAs consist of: A city – defined by urban centres in the degree of urbanisation, adapted to the closest local administrative units to define a city. A commuting zone – including all local areas where at least 15% of employed residents work in the city. The delineation process includes: Assigning municipalities surrounded by a single FUA to that FUA. Excluding non-contiguous municipalities. The correspondence table between SAUs and FUAs/cities is available in parquet and csv format. The definition identifies 1 272 FUAs and 1 269 cities in all OECD member countries except Costa Rica and four accession countries. Cite this dataset OECD Regions, cities and local areas database (Air pollution - Cities and FUAs), http://oe.cd/geostats Further information OECD Local Data Portal OECD Regions and Cities at a Glance For questions and/or comments, please email CitiesStat@oecd.org