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

This news release is available in German.

Substantial improvements in freshwater quality by 2015 have been a declared objective of the EU member states, manifesting itself by the requirements of the Water Framework Directive (WFD). A recent study conducted by the Institute for Environmental Sciences Landau together with the Helmholtz Centre for Environmental Research (UFZ) and fellow scientists from France (University of Lorraine and EDF) and Switzerland (Swiss Federal Institute of Aquatic Science and Technology - EAWAG) shows that this target is unlikely to be met due to the high levels of toxicants in the water bodies. One of the reasons: current measures for the improvement of water quality do not account for the effects of toxic chemicals. The study demonstrates for the first time on a pan-European scale that the ecological risks posed by toxic chemicals are considerably greater than has generally been assumed.

Up to now environmental authorities and parts of the scientific community have considered toxic chemicals to be rather a local problem affecting only a few bodies of water. The current study, however, reveals for the first time on a large scale the ecological risks emanating from chemical toxicants for several thousands of European aquatic systems. Chemical toxicity represents an ecological threat to almost half of all European bodies of water, and in approximately 15% of cases, the biota in freshwater systems may even be subject to acute mortality.

Actual state of European aquatic ecosystems is presumably even worse

Together with their French and Swiss fellow researchers the scientists from Landau and Leipzig have investigated the exceedance of risk thresholds in the river basin of major stream networks, such as the Danube and
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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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