Chemicals of concern detected in Dresden's waters

So-called perpetual chemicals have been found in waters in the north of Dresden. The districts of Klotzsche and Weixdorf are affected, as announced by the state capital. The State Office for the Environment, Agriculture and Geology found elevated levels of perfluorinated and polyfluorinated alkyl substances (PFAS), particularly in the Ziegeleiteich pond and at the Weixdorf forest pool.

Maximum levels exceeded in fish

The maximum PFAS concentration in food was exceeded in fish from both bodies of water, meaning that they may not be placed on the market and may not be sold or given away free of charge. Fishing in the Ziegeleiteich is also prohibited. The water in the surrounding wells is also contaminated and the users have been informed by the health authorities. According to the current state of knowledge and time, there is nothing to prevent the Weixdorf bathing area from being operated in 2026.

PFAS do not occur naturally and, depending on the substance, last an extremely long time in the environment - hence the name perpetual chemicals. Among other things, they are suspected of causing liver damage as well as kidney and testicular cancer. Due to their unique characteristics, the substances are used in large numbers, especially in industrial products and everyday items - from anoraks and pans to cosmetics.

Cause of occurrence still unclear

PFAS are also used in microelectronics production, for example in the surface coating of microchips. However, according to a spokesperson for the state capital, it is unclear whether there is a connection between the increased occurrence found in the north of Dresden and the chip factories there.

In the search for the cause, the environmental agency is initially investigating water bodies, sediments and wells in a larger radius to determine the size of the PFAS-contaminated area. Initial findings are expected at the beginning of January. "The city will inform citizens in full about the results of the investigations and, in cooperation with the state authorities, arrange the necessary protective measures," said Environment Mayor Eva Jähnigen (Greens).

A ban on PFAS is being discussed in the European Union, with some exceptions. Industry associations see this as a threat to high-tech industries.