WFD Cycle 2 river BOD classfication

This dataset is a subset of the "WFD Classification Status Cycle 2" product and contains summary data for the element Biochemical oxygen demand (BOD). Please note that BOD has not been used in classifying the status of water bodies. It is used for site-specific regulation such as setting consent limits. The BOD classification dataset is an element of the physico-chemical group or element set. Site classifications are derived from spot sampling monitoring data. The results of which are calculated into percentiles using a parametric method and assessed against two sets of environmental quality standards (EQS), which are derived from site typology. Site classifications for BOD use categories of High, Good, Moderate, Poor, and Bad. Attribution statement: © Environment Agency copyright and/or database right 2016. All rights reserved.

本数据集为“WFD分类状态周期2”产品的一个子集，其中包含了生化需氧量（BOD）的汇总数据。请注意，BOD并未被用于水体的状态分类。它主要用于特定地点的监管，例如设定同意限制。BOD分类数据集是物理化学组或元素集的一部分。地点分类源自现场采样监测数据，其结果通过参数方法计算为百分位数，并对照由地点类型学得出的两套环境质量标准（EQS）进行评估。BOD的地点分类使用高、良好、适中、较差和差等类别。归属声明：© 环境署版权和/或数据库权利2016。所有权利保留。