WFD Cycle 2 ecological water body classification
Ecological status classifications can be composed of up to five different assessments: 1. An assessment of status indicated by a biological quality element such as fish, invertebrates or algae. 2. An assessment of compliance with environmental standards for supporting physico-chemical conditions, such as dissolved oxygen, phosphorus or ammonia. 3. An assessment of compliance with environmental standards for concentrations of specific pollutants, such as zinc, cypermethrin or arsenic And, in determining high status only: 4. A series of tests to make sure that hydromorphology is largely undisturbed 5. An assessment of the presence of invasive species. Ecological status is recorded as high, good, moderate, poor or bad. ‘High’ represents ‘largely undisturbed conditions’. Other classes show increasing deviation from undisturbed or reference conditions. Ecological status is determined by the worst scoring element (one-out-all-out approach). Attribution statement: © Environment Agency copyright and/or database right 2015. 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
9fd716c2-8346-4dd9-a7f7-3ec59d96e192
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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