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- Published by:
- Natural Resources Wales
- Last updated:
- 14 October 2025
The Historic UK Water Quality Sampling Harmonised Monitoring Scheme (HMS) data contains statistics for a series of water quality sampling sites including annual means, maximum and minimum values...
- Published by:
- Natural Resources Wales
- Last updated:
- 22 June 2023
The Historic UK Water Quality Sampling Harmonised Monitoring Scheme (HMS) data contains statistics for a series of water quality sampling sites including annual means, maximum and minimum...
- Published by:
- Environmental Information Data Centre
- Last updated:
- 24 March 2025
[THIS DATASET HAS BEEN WITHDRAWN]. This dataset consists of freshwater pond quality data for sites across Great Britain in 2007. Data include macrophyte species records, chemistry and water...
- Published by:
- Marine Environmental Data & Information Network
- Last updated:
- 10 July 2024
Full water quality monitoring data set from the Commonwealth Marine Economies
Programme survey around Tarawa, Kiribati in March 2019.
This work was hosted and supported by the Kiribati Ministry...
- Published by:
- Marine Environmental Data & Information Network
- Last updated:
- 30 September 2025
Full water quality monitoring data set from the Commonwealth Marine Economies
Programme survey around Tarawa, Kiribati in March 2019.
This work was hosted and supported by the Kiribati Ministry...
- Published by:
- Forestry Commission
- Last updated:
- 17 December 2025
Data for air quality variables measured every four weeks in 2022 and 2023 at seven 0.25 hectare ICP Forests Level II plots, including Ozone, NH3 and NO2, measured by passive diffusion tubes.
The...
- Published by:
- Environment Agency
- Last updated:
- 25 July 2025
The Water Quality Archive provides data on water quality measurements taken from sampling points around the country and then analysed to measure aspects of the water quality and / or the...
- Published by:
- Natural Resources Wales
- Last updated:
- 14 October 2025
The Historic UK Water Quality Sampling Harmonised Monitoring Scheme (HMS) dataset contains individual determinand results for all sites in the UK Harmonised Monitoring Scheme network from 1974...
- Published by:
- Natural Resources Wales
- Last updated:
- 07 July 2023
The Historic UK Water Quality Sampling Harmonised Monitoring Scheme (HMS) dataset contains individual determinand results for all sites in the UK Harmonised Monitoring Scheme network from...
- Published by:
- Department for Environment, Food and Rural Affairs
- Last updated:
- 16 December 2015
This is a bulk data download resource for air pollution measurements hosted by Defra's UK-AIR web pages - see also http://uk-air.defra.gov.uk/.
Monitoring networks and pollutants included are...
- Published by:
- Forestry Commission
- Last updated:
- 18 December 2025
Water quality and biology results for 21 streams draining headwater catchments dominated by woodland cover. Water quality data mainly comprise concentrations of various chemical constituents, as...
- Published by:
- Greater London Authority
- Last updated:
- 23 December 2025
This is a dataset of air quality exposure data broken down by parliamentary constituency based on the current 2013 data from the London Atmospheric Emissions Inventory. The legal limit for NO2...
- Published by:
- Bristol City Council
- Last updated:
- 18 July 2024
Locations of Bristol City Council operated air quality monitoring sites, which defines the areas of poor air quality in Bristol.Data displayed is annual nitrogen dioxide (NO2) concentrations...
- Published by:
- Environment Agency
- Last updated:
- 03 December 2024
PLEASE NOTE: This dataset has now been retired. The Harmonised Monitoring Scheme (HMS) was decommissioned in 2013, this is the final year that the dataset was produced. Water quality measurements...
- Published by:
- Bristol City Council
- Last updated:
- 20 November 2018
Air quality is monitored continuously at several sites in and around the city with continuous analysers. Real time data from our air quality monitoring network, and from sites in Bristol that are...
- Published by:
- City of York Council
- Last updated:
- 15 June 2024
Locations of diffusion tubes for monitoring NO2 levels in York, along with their __latest available bias corrected annual mean__ values. Values currently displayed correspond to __calendar year...
- Published by:
- Environmental Information Data Centre
- Last updated:
- 19 November 2025
Urban water quality and hydrometric data for a range of urban developments in in the south of England. Water quality has been obtained from fortnightly-monthly sampling of river water using a Manta...
- Published by:
- The Pensions Regulator
- Last updated:
- 12 December 2013
The Call Quality System contains details of all phone calls that are made to and from the regulator's customer support teams. This information will include personal data about the call (e.g. phone...
- Published by:
- Environment Agency
- Last updated:
- 25 July 2025
This record is for Approval for Access product AfA178.The Historic UK Water Quality Sampling Harmonised Monitoring Scheme (HMS) data contains statistics for a series of water quality sampling sites...
- Published by:
- Leeds City Council
- Last updated:
- 04 August 2021
Datasets showing nitrogen dioxide levels (NO2) at various locations around Leeds.
Please note
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From 17/02/17 this dataset will be archived and superseeded by the ratified air quality...