WFD Cycle 2 River Phosphorous Classification

This dataset is a subset of the "WFD Classification Status Cycle 2" product. It contains summary data for the element phosphorus for river water bodies, as used in the classification for Ecological status for the water framework directive (WFD). The phosphorus classification dataset is an element of the physico-chemical group or element set and is used to consider particular phyisco-chemical conditions. Phosphorus is a plant nutrient and elevated concentrations in rivers can lead to accelerated growth of algae and other plants which can have adverse ecological impacts. Classifications are derived from spot sampling monitoring data, we analyse for orthophosphate for this element. The results of which are calculated into annual mean concentrations and assessed against a set of site specific environmental quality standards (EQS), which take account of a site’s alkalinity and altitude. Site classifications for phosphorus use categories of High, Good, Moderate, Poor, and Bad.