Bedömning av vattenkvalité i Sverige och Tyskland – en jämförande studie i teori och praktik

During the last decades increased human activities have had a large impact on water quality of watercourses in Europe. A deterioration of water quality has mainly been caused by agricultural and industrial activities. To keep track of the environmental situation in watercourses continuous supervi...

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Autor principal: Neumann, Dörthe
Formato: Otro
Lenguaje:sueco
sueco
Publicado: 2020
Materias:
Acceso en línea:https://stud.epsilon.slu.se/15431/
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author Neumann, Dörthe
author_browse Neumann, Dörthe
author_facet Neumann, Dörthe
author_sort Neumann, Dörthe
collection Epsilon Archive for Student Projects
description During the last decades increased human activities have had a large impact on water quality of watercourses in Europe. A deterioration of water quality has mainly been caused by agricultural and industrial activities. To keep track of the environmental situation in watercourses continuous supervision and assessment is needed. Achieving a standardized environmentally sustainable water quality within the European Union requires a uniform assessment of watercourses. To develop a uniform assessment of watercourses within the European Union is the major task. Existing watercourse classification methods within each European country need to be evaluated and compared. As one step of the evaluation procedure, this study investigates and compares watercourse classification methods in Sweden and Germany. In Sweden “Environmental Quality Criteria” are used to classify both current status and human influence. In Germany water quality is assessed by a biological-ecological method based on Saprobiesystem and a complex chemical index as well as defined target values in order to assess water chemistry. The Swedish method allows to investigate the cause of environmental problems because every parameter is assessed separately. However, no information about the overall water quality can be obtained. In contrast, the German chemical index describes the overall water quality but does not assess single parameters separately. Cause and extent of environmental problems are therefore not explicitly stated. A case study that was part of this study shows that the German and the Swedish watercourse classification methods give potentially different results if evaluated for the same watercourses. The German method always classifies the watercourses with a lower classification class that stands for a better water quality. The results probably reflect the difference between the methods to set classification scales and class limits used in every country. An explanation of the different classes could be that German watercourses generally are more polluted than Swedish ones. Both different natural conditions and different environmental problems require different assessment methods. If it will be possible to develop a new and uniform assessment system throughout Europe is debatable. The investigation arrives at the conclusion that it will be difficult to develop one appropriate system for all European countries. Considering both large differences between existing assessment methods in the countries and different natural conditions within Europe it will take a long time to develop an equitable and environmentally sustainable assessment method as it is required within the European Union.
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spelling RepoSLU154312020-12-05T02:01:43Z https://stud.epsilon.slu.se/15431/ Bedömning av vattenkvalité i Sverige och Tyskland – en jämförande studie i teori och praktik Neumann, Dörthe Water resources and management During the last decades increased human activities have had a large impact on water quality of watercourses in Europe. A deterioration of water quality has mainly been caused by agricultural and industrial activities. To keep track of the environmental situation in watercourses continuous supervision and assessment is needed. Achieving a standardized environmentally sustainable water quality within the European Union requires a uniform assessment of watercourses. To develop a uniform assessment of watercourses within the European Union is the major task. Existing watercourse classification methods within each European country need to be evaluated and compared. As one step of the evaluation procedure, this study investigates and compares watercourse classification methods in Sweden and Germany. In Sweden “Environmental Quality Criteria” are used to classify both current status and human influence. In Germany water quality is assessed by a biological-ecological method based on Saprobiesystem and a complex chemical index as well as defined target values in order to assess water chemistry. The Swedish method allows to investigate the cause of environmental problems because every parameter is assessed separately. However, no information about the overall water quality can be obtained. In contrast, the German chemical index describes the overall water quality but does not assess single parameters separately. Cause and extent of environmental problems are therefore not explicitly stated. A case study that was part of this study shows that the German and the Swedish watercourse classification methods give potentially different results if evaluated for the same watercourses. The German method always classifies the watercourses with a lower classification class that stands for a better water quality. The results probably reflect the difference between the methods to set classification scales and class limits used in every country. An explanation of the different classes could be that German watercourses generally are more polluted than Swedish ones. Both different natural conditions and different environmental problems require different assessment methods. If it will be possible to develop a new and uniform assessment system throughout Europe is debatable. The investigation arrives at the conclusion that it will be difficult to develop one appropriate system for all European countries. Considering both large differences between existing assessment methods in the countries and different natural conditions within Europe it will take a long time to develop an equitable and environmentally sustainable assessment method as it is required within the European Union. 2020-03-13 Other NonPeerReviewed application/pdf sv https://stud.epsilon.slu.se/15431/1/neumann_d_200313.pdf Neumann, Dörthe, 2001. Bedömning av vattenkvalité i Sverige och Tyskland – en jämförande studie i teori och praktik. UNSPECIFIED, Uppsala. Uppsala: (NL, NJ) > Dept. of Environmental Assessment <https://stud.epsilon.slu.se/view/divisions/4056.html> urn:nbn:se:slu:epsilon-s-15431 swe
spellingShingle Water resources and management
Neumann, Dörthe
Bedömning av vattenkvalité i Sverige och Tyskland – en jämförande studie i teori och praktik
title Bedömning av vattenkvalité i Sverige och Tyskland – en jämförande studie i teori och praktik
title_full Bedömning av vattenkvalité i Sverige och Tyskland – en jämförande studie i teori och praktik
title_fullStr Bedömning av vattenkvalité i Sverige och Tyskland – en jämförande studie i teori och praktik
title_full_unstemmed Bedömning av vattenkvalité i Sverige och Tyskland – en jämförande studie i teori och praktik
title_short Bedömning av vattenkvalité i Sverige och Tyskland – en jämförande studie i teori och praktik
title_sort bedömning av vattenkvalité i sverige och tyskland – en jämförande studie i teori och praktik
topic Water resources and management
url https://stud.epsilon.slu.se/15431/
https://stud.epsilon.slu.se/15431/