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' Attribution statement: © Environment Agency copyright and/or database right 2023. All rights reserved.
Derived in part from geological mapping data provided by the British Geological Survey © NERC.
Derived in part from data provided by the National Soils Research Institute © Cranfield University.
Contains Ordnance Survey data © Crown copyright and database rights 2016.
Derived in part from data provided by the Department for the Environment, Farming and Rural Affairs © Crown 2016 copyright Defra.
Derived in part from data provided by the Centre for Ecology and Hydrology © NERC.
Derived in part from data provided by UK Water Companies.

本数据集旨在识别2021年实施之硝酸盐敏感区。该等划分由英格兰硝酸盐污染防治法规2015年（Nitrate Pollution Prevention Regulations 2015）之国务秘书作出。本数据集取代了之前的‘硝酸盐敏感区（NVZ）2017 - 合并（最终划分）’数据集。硝酸盐敏感区（Nitrate Vulnerable Zones, NVZs）是指因农业硝酸盐污染而处于风险地区的区域。根据硝酸盐指令和硝酸盐法规，水体若含有或可能含有超过50mg/l的硝酸盐浓度，或未采取预防措施而趋于富营养化，则被视为受污染。用户可通过‘检查饮用水保护区（SgZs）和硝酸盐敏感区（NVZs）交互式地图’浏览地图和NVZ数据表。版权声明：© 环境署版权和/或数据库权利2023。版权所有。部分数据源自英国地质调查局（British Geological Survey）提供的地质测绘数据© NERC。部分数据源自国家土壤研究学院（National Soils Research Institute）提供的数据© Cranfield University。包含测量局数据© 英国王室版权和数据库权利2016。部分数据源自环境、农业及农村事务部（Department for the Environment, Farming and Rural Affairs）© 2016版权Defra提供的数据。部分数据源自生态与水文中心（Centre for Ecology and Hydrology）提供的数据© NERC。部分数据源自英国水务公司提供的数据。