Dear colleagues, There are ...

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Dear colleagues, There are several studies on endocrine disrupting substances in treated wastewater. The Swiss Federal Institute of Technology has worked on that. I remember around 2000 an article was pubished in the newspaper Neue Zürcher Zeitung, informing that a male trout was changing sex within 3 weeks living in the outlet of a Swiss Water Treatment Plant. Now not all endocrine disrupting substances are due to pharmaceuticals, many other chemical products of daily use, also cosmetics have such properties. So it is actually very difficult to attribute responsibilities as in wastewater you have continuously recombination of chemical substances leading to new partially unnown elements. This substances called micropollutants, are a major problem for our rivers and lakes. Studie and trials are carried out, among others at the wastewater treatment plant of Lausanne who is using leading technologies to trap the micropollutants. Here are two older publications which could interest you: http://e-collection.library.ethz.ch/eserv/eth:27393/eth-27393-01.pdf http://e-collection.library.ethz.ch/eserv/eth:27246/eth-27246-01.pdf