WFD Cycle 1 2015 Deteriorations (England)

This dataset contains Cycle 1 Water Framework Directive (WFD) class deteriorations at water body level, for England only, for the year 2015, for quality elements. This dataset also contains the statistical confidence and derived certainty that a real deterioration in class has occurred. Deteriorations are assessed by detecting downgrades in class status in 2015 against the baseline status of 2009, and estimating the confidence that a real deterioration in class has occurred. Attribution statement: Environment Agency copyright and/or database right 2016. All rights reserved.

本数据集收录了2015年英格兰地区水框架指令（WFD）第一周期水质要素在水体层面的恶化情况。此外，该数据集还包含了统计置信度和推断的确定性，用以确认水质类别确实发生了恶化。恶化评估通过在2015年对水质类别地位进行降级检测，并与2009年的基线状态进行对比，从而估算出水质类别发生真实恶化的置信度。归属声明：环境署版权和/或数据库权利所有，2016年。版权所有。