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  3. WFD Cycle 2 chemical water body classification

WFD Cycle 2 chemical water body classification

Summary

Chemical status is assessed from compliance with environmental standards for chemicals that are defined as priority substances and/or priority hazardous substances. Chemical status is recorded as ‘good’ or ‘fail’. Chemical status for a water body is determined by the worst scoring chemical (one-out-all-out approach).

Categories

Use limitation statement

There are no public access constraints to this data. Use of this data is subject to the licence identified.

Attribution statement

© Environment Agency copyright and/or database right 2015. All rights reserved.

Technical information

Update frequency

annually

Lineage

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.

Spatial information

Geographic extent

  • Latitude from: 49.943 to 55.816
  • Longitude from: -6.236 to 2.072
Metadata information

Language

English

Metadata identifier

42666ef8-3be4-4db3-866f-d293c2166545


Published by

Environment Agency

Contact publisher

Defra Data Services Forum

Dataset reference dates

Creation date

09 December 2015

Revision date

N/A

Publication date

N/A

Period

  • From: 02 December 2015

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Data and Supporting Information
Data services and download by area of interestLinkAction
Full downloads and supporting documentationFormatAction
WFD_SW_Classification_Status_and_Objectives_Cycle2_v3.xlsxXLSXDownload