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• Sensitive Areas - Nitrates

  This record is for Approval for Access product AfA251. This dataset is a shapefile showing the extent of UWWTD sensitive areas (nitrate). The Urban Wastewater Treatment Directive (91/271/EEC)...

  • Published by: Environment Agency
  • Updated: 29 November 2013

• Nitrate Sensitive Areas

  NSAs are carefully selected areas covering groundwater sources used to supply drinking water. In these areas incentives were offered to farmers to undertake significant changes in agricultural...

  • Published by: Natural England

• Nitrate Vulnerable Zones (NVZ) 2021 Designations

  This dataset identifies Nitrate Vulnerable Zones for implementation in 2021.

  The designations are made by the Secretary of State for the purposes of the Nitrate Pollution Prevention Regulations...

  • Published by: Environment Agency

• Nitrate Vulnerable Zones (NVZ) 2017 - Combined (Pre appeals Designations)

  PLEASE NOTE: This dataset has been retired, as it has been superseded by the dataset for Nitrate Vulnerable Zones (NVZ) 2021 Designations. See:...

  • Published by: Environment Agency

• Nitrate Vulnerable Zones (NVZ) 2017 - Combined (Final Designations)

  PLEASE NOTE: This dataset has been retired, as it has been superseded by the dataset for Nitrate Vulnerable Zones (NVZ) 2021 Designations. See:...

  • Published by: Environment Agency

• Historic GQA Headline Indicators of Water Courses - Nutrients - NITRATE GQA GRADES 2009 (ENGLAND)

  This record is for Approval for Access product AfA163.1 'Historic GQA Headline Indicators of Water Courses - Nutrients - nitrate GQA grades 2009 (England)'. The General Quality Assessment Headline...

  • Published by: Environment Agency

• Historic GQA Headline Indicators of Water Courses - Nutrients - nitrate GQA grades 2010 (Wales)

  This record is for Approval for Access product AfA163.2 'Historic GQA Headline Indicators of Water Courses - Nutrients - nitrate GQA grades 2010 (Wales)'. The General Quality Assessment Headline...

  • Published by: Environment Agency

• Data for UK OSPAR Common Procedure - Eutrophication Assessment - 1990 to 2014

  This dataset contains chlorophyll, nutrients and dissolved oxygen measurements which were used in the 3rd application of the OSPAR Common Procedure for Assessment of Eutrophication and UK Marine...

  • Published by: Centre for Environment, Fisheries & Aquaculture Science
  • Updated: 31 May 2023

• Historic GQA Headline Indicators of Water Courses - Nutrients - phosphate GQA grades 2010 (Wales)

  This record is for Approval for Access product AfA163.4 'Historic GQA Headline Indicators of Water Courses - Nutrients - phosphate GQA grades 2010 (Wales)'. The General Quality Assessment Headline...

  • Published by: Environment Agency

• Historic GQA Headline Indicators of Water Courses - Nutrients - phosphate GQA grades 2009 (England)

  GQA Headline Indicators of Water Courses - Nutrients - phosphate GQA grades 2009 (England)'. The General Quality Assessment Headline Indicator scheme (GQAHI) was the Environment Agency's national...

  • Published by: Environment Agency

• SmartBuoy observational network - North Dogger

  On the SmartBuoy, surface measurements of plant nutrient concentrations are derived from two instruments. The NAS-3X in-situ nutrient analyser takes hourly measurements of nitrate concentration,...

  • Published by: Centre for Environment, Fisheries & Aquaculture Science
  • Updated: 26 May 2023

• Modelled projections of habitat for fish species feeding guilds around North-western Europe under climate change, 2010 to 2095

  These data are Bayesian Additive Regression Tree model annual predictions for habitat suitability of marine fish species across a range of body sizes and belonging to different feeding guilds...

  • Published by: Centre for Environment, Fisheries & Aquaculture Science
  • Updated: 7 December 2023

• National Real Time Water Quality Data

  Real time water quality data is collected using equipment provided by the National Water Quality Instrumentation Service and is deployed by area teams within the Environment Agency. The link...

  • Published by: Environment Agency
  • Updated: 12 January 2022

• Sensitive Areas - Bundle of datasets

  Bundle of datasets including the following (please see individual dataset records for full metadata):

  Sensitive Areas - Bathing Waters Sensitive Areas - Eutrophic Coastal Areas Sensitive Areas -...

  • Published by: Environment Agency
  • Updated: 30 April 2015

• Dissolved oxygen, temperature and salinity measurements in coastal and estuarine waters in the UK from 1990 to 2018

  Data on dissolved oxygen, temperature and salinity in estuarine and coastal waters were obtained from field-based monitoring programmes in England, Scotland, Wales and Northern Ireland under EU...

  • Published by: Centre for Environment, Fisheries & Aquaculture Science
  • Updated: 26 September 2023

• Drinking Water Safeguard Zones (Groundwater)

  Drinking Water Groundwater Safeguard Zones (SgZs) are established around public water supplies where additional pollution control measures are needed. The Water Framework Directive requires that...

  • Published by: Environment Agency
  • Updated: 9 July 2025