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 2015 (England). This dataset supersedes the previous dataset ‘Nitrate Vulnerable Zones (NVZ) 2017 – Combined (Final Designations)’. Nitrate Vulnerable Zones (NVZs) are areas designated as being at risk from agricultural nitrate pollution. Waters are defined within the Nitrates Directive and Nitrate Regulations as polluted if they: - contain or could contain, if preventative action is not taken, nitrate concentrations greater than 50mg/l - are eutrophic, or become eutrophic, if preventative action is not taken. To view maps and NVZ datasheets use 'Check for Drinking Water Safeguard Zones (SgZs) and Nitrate Vulnerable Zones (NVZs) Interactive Map' This datasets was created from modelling using the following data sources: Digital 1:50,000 river centre-lines (Centre for Ecology and Hydrology), CEH Land cover map of Great Britain (Centre for Ecology and Hydrology), Geology (British Geological Survey), Population statistics per Super Output Area (Office of National Statistics), CORNINE 2006 land use maps (European Environment Agency). National Property Database 2008 (ODPM), Flow Data (Centre for Ecology and Hydrology / Wallingford HydroSolutions), NEAP-N agricultural loads (ADAS / Defra), Source Protection Zones (Environment Agency), WIMS monitoring data (Environment Agency), Water Framework Directive River Waterbodies (Environment Agency) Water Framework Directive River Catchment Waterbodies (Environment Agency), Water Framework Directive Groundwater Waterbodies (Environment Agency), Water Framework Directive Classification (Environment Agency), Water company monitoring data (UK Water Companies), Consented discharges (Environment Agency), HOST database (National Soil Research Institute / Centre for Ecology and Hydrology), Customer and Land Database (Rural Payments Agency), 50m Digital Terrain model (Nextmap), MasterMap (Ordnance Survey), Meridian (Ordnance Survey). Click Here to go straight to the DSP Metadata Page for this Dataset.