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Chemical pollution of European waters is stronger than anticipated
Date:6/17/2014

ity substances is no longer permitted and therefore, their concentration levels are steadily decreasing in many parts of the European streams. The real problem, however, is that a large number of chemicals which are currently in use are not taken into account at all in the context of water quality monitoring", states Dr. Werner Brack from the Helmholtz Centre for Environmental Research in Leipzig. Additionally, recent findings show that for certain substances the assumed level(s) of effect concentration might be too high.

Improved definition of framework objectives and coordination are essential

In order to cope with the multitude of potentially hazardous substances , the scientists participating in this study recommend the introduction and intelligent linking of ecological and effects-based chemical screening methods as the only financially viable way of capturing the whole spectrum of ecotoxicologically relevant substances. "In this way", Werner Brack points out, "hazardous substances can be detected even before they have been placed on the priority list". The current study, shows that there is an urgent need for action, especially with respect to the current chemical monitoring activities. "In practical terms, this means that urgent action is required at all levels, to ensure the sustainable protection of our aquatic ecosystems", says Schfer. The necessary steps to be taken range from general prevention of excessive chemical inputs into water bodies and the banishment and substitution of particularly problematic substances, up to a reduction in the application of agricultural chemicals and an improvement of sewage and wastewater treatment methods and technology. There is consensus among the members of the research team that, unless there is noticeable change to the current situation, the objectives and targets of the Water Framework Directive will not be met, due to toxicity from chemicals in the freshwater ecosystems. In the lo
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Contact: Tilo Arnhold
presse@ufz.de
49-341-235-1635
Helmholtz Centre for Environmental Research - UFZ
Source:Eurekalert  

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