Sensitive Areas - Eutrophic Rivers

This record is for Approval for Access product AfA249-1 Sensitive Areas – Eutrophic Rivers. This dataset consists of 3 shapefiles showing the extent of Urban Wastewater Treatment Directive (91/271/EEC) (UWWTD) sensitive areas (eutrophic). The UWWTD describes eutrophication as ‘the enrichment of water by nutrients, especially compounds of nitrogen and/or phosphorous, causing an accelerated growth of algae and higher forms of plant life to produce an undesirable disturbance to the balance of organisms present in the water and to the quality of the water concerned’.
The UWWTD regulates the collection and treatment of waste water from homes and from industry. In the UK, the Directive is implemented through the Urban Wastewater Treatment Regulations 1994. Under these Regulations, water bodies that are (or may soon become) eutrophic should be designated as sensitive areas by Defra. This applies to still fresh waters, rivers, estuaries and coastal waters.
This dataset consists of:
• rivers currently designated as UWWTD eutrophic sensitive areas
• lakes currently designated as UWWTD eutrophic sensitive areas
• shows harbours and estuaries currently designated as UWWTD eutrophic sensitive areas Attribution statement: © Environment Agency copyright and/or database right 2015. All rights reserved.

本记录为对 AfA249-1 产品敏感区域——富营养化河流的访问审批。本数据集包含3个形状文件，展示了城市废水处理指令（91/271/EEC）（UWWTD）敏感区域（富营养化）的分布范围。UWWTD 将富营养化定义为‘水体中由于氮、磷等营养物质的富集，导致藻类和高等植物加速生长，从而对水中生物平衡及水质造成不良影响的自然现象’。UWWTD 规定了来自住宅和工业的废水的收集和处理。在英国，该指令通过1994年的城市废水处理法规得以实施。根据这些法规，即将或可能成为富营养化的水域应由英国环境、食品和乡村事务部（Defra）指定为敏感区域。这适用于静态淡水、河流、河口和沿海水域。本数据集包括：• 当前被指定为UWWTD富营养化敏感区域的河流• 当前被指定为UWWTD富营养化敏感区域的湖泊• 显示当前被指定为UWWTD富营养化敏感区域的港口和河口。归属声明：© 英国环境署版权和/或数据库权利2015。版权所有。