Overview

• A dog collapsed and died recently after exposure to cyanobacteria linked with water plants at Berlin’s Tegeler See.
• The health authority issued an advisory urging owners to keep dogs on a leash and to steer clear of shoreline vegetation.
• Bezirksamt Reinickendorf announced it will reinstall warning signs at key lakefront spots before summer.
• Toxic cyanobacteria were first detected in 2017 and have since been implicated in multiple canine deaths despite posing minimal risk to humans.
• Officials stress that dogs can be poisoned by chewing water plants or drinking contaminated water even when overall toxin levels remain below human safety limits.