Groenmerck in Neuss
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Mysterious success with ultrasound
Groen Merck is a large local recreation area in North Neuss, but algal blooms have repeatedly disturbed management in the hot summer. Thanks to the ultrasound technology, the water quality has improved significantly.
Photo: Neuss
Noyes Environmental Officer Matthias Welbmann relies on low-frequency underwater sounds to combat algal blooms at Mount Groun Merck. It works, even if the effect remains inexplicable even in a specialized seminar.
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