WFD Cycle 1 2016 Deteriorations (England)

This dataset contains Cycle 1 Water Framework Directive (WFD) class deteriorations at water body level, for England only, for the year 2016, 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 2016 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 2017. All rights reserved.

本数据集收录了针对2016年英格兰地区水体级别的水框架指令（WFD）第一周期水质要素的恶化情况。此外，该数据集还包含了统计置信度和推断出的确定性，用以确认水质要素确实发生了恶化。恶化情况的评估是通过对比2016年的水质等级下降与2009年的基线状态，并估算出水质等级确实发生恶化的置信度。归属声明：环境署版权及/或数据库权利，2017年。版权所有。