WFD Cycle 2 River ANC Classification
This dataset is a subset of the "WFD Classification Status Cycle 2" product. It contains summary data for the element acid neutralising capacity (ANC) for river water bodies, as used in the classification for Ecological status for the water framework directive (WFD). The ANC classification dataset is an element of the physico-chemical group or element set and is used to consider particular phyisco-chemical conditions. While pH can be considered as a measure of acidity, ANC is a direct measure of anthropogenic acidification and is commonly used for managing acidification at a national level. It is a calculated measurement based on pH, dissolved organic carbon and alkalinity data. The measurement results for a site are calculated into a annual mean concentration and assessed against two sets of environmental quality standards (EQS), which are derived from a site’s typology. Site classifications for ANC use categories of High, Good, Moderate, Poor, and Bad. Attribution statement: © Environment Agency copyright and/or database right 2016. All rights reserved.
dataset
protocol: http
name: WFD_SW_Classification_Status_and_Objectives_Cycle2_v3.xlsx
description: WFD_SW_Classification_Status_and_Objectives_Cycle2_v3.xlsx download on Defra Data Services Platform
8d010697-596c-416f-816b-e46beba09bda
eng
http://www.opengis.net/def/crs/EPSG/0/27700
environment
environment
EC directive
publication
2010-01-13
water quality
publication
2010-01-13
-6.236
2.072
55.816
49.943
2015-12-02
2099-12-31
creation
2015-12-09
annually
The Water Framework Directive classification system is risk based and focuses on where there is likely to be a problem. It uses a principle known as "one out, all out", which means the poorest individual results drive the overall classification for a water body. It reports on over 30 quality elements, grouped into ecological status and chemical status. Ecological status includes physico-chem (e.g. nutrients, pH, dissolved oxygen, ammonia) , biological elements (e.g. phytoplankton, macroalgae, fish, invertebrates) , specific pollutants (e.g. metals and compounds, organic compounds) , hydromorphology (e.g. depth, width, flow, structure). Chemical status is assessed using priority substances, priority hazardous substances and other pollutants that present a significant risk to the water environment.
Proprietary format | MS Excel (XLS)
Unknown
Open Government Licence
There are no public access constraints to this data. Use of this data is subject to the licence identified.
There are no public access constraints to this data. Use of this data is subject to the licence identified.
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2024-01-02