WFD Cycle 2 TraC dissolved oxygen classification
This dataset is a subset of "WFD Classification Status Cycle 2" and contains classification data for Dissolved Oxygen (DO) in transitional and coastal water bodies. Physico-chemistry, in this case Dissolved Oxygen, is a supporting element that underpins the ecological status of a transitional or coastal water body. Data consisting of DO and salinity records are run through the Dissolved Oxygen Water Framework Directive (WFD) classification tool. The actual (observed) 5%ile values of DO are compared with a predicted 5%ile value at average salinity in transitional waters, or with fixed values in coastal waters, that reflect pristine conditions. The comparison between the observed and expected 5%ile values of DO are used to produce a DO classification (High, Good or Moderate only) of a transitional or coastal water body for WFD purposes. 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
e75204e8-6e39-4348-abd2-cdbe7ee8fef1
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