Classification - 2008 River Cycle 1 phytobenthos water body level with confidence of class
Survey results from 2007 showing the health of phytobenthos (algae that grows on rocks on the river bed, also known as diatoms) expressed against the Water Framework Directive status classes. This is for a national selection of English rivers. The dataset also contains statistical information on the confidence that the results have been correctly assigned to each status class, taking into account normal and naturally occurring errors associated with measuring the environment. The assessment method has since been improved. Attribution statement: © Environment Agency copyright and/or database right 2019. All rights reserved.
dataset
https://ea.sharefile.com/d-s37a5030d2624d74a
protocol: http
name:
description:
aa221c50-097a-4efa-a15e-4879c6673d1e
eng
http://www.opengis.net/def/crs/EPSG/0/27700
biota
environment
biota
environment
surface water
publication
2010-01-13
surface water
publication
2010-01-13
living environment
publication
2010-01-13
-6.236
2.072
55.816
49.943
2007-01-01
2008-03-01
creation
2008-07-22
publication
2016-04-22
notPlanned
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)
2013
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.
Environment Agency
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pointOfContact
Environment Agency
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pointOfContact
2024-01-02