Chlorine gas leak in the Mayen swimming pool: No injuries, but standstill!

Chlorine gas leak in the Mayen swimming pool: No injuries, but standstill!

On Tuesday evening, June 18, 2025, an alarming incident occurred in the Mayen swimming pool: chlorine gas escaped and led to an ad hoc police operation, which immediately cordoned off the affected area. Loud SWR The situation was quickly under control and fortunately there were no injuries.

The city of Mayen sent out an update on Wednesday afternoon announcing that the warning had been withdrawn and residents within a 200 meter radius were advised to keep windows and doors closed. To ensure that there are no risks to the population, comprehensive pollutant measurements were carried out, which did not reveal any increased concentrations of chlorine gas. “The situation was carefully examined,” said the city, and the fire department was also on site on Wednesday to bind hydrochloric acid and transport it safely away.

The swimming pool remains closed for the time being

Despite the reassuring news, the swimming pool remains closed for the time being. The exact reasons for the chlorine gas leak remain unclear, which leaves a certain question mark over the incident. Chlorine gas is not only an important disinfectant for drinking and bathing water, but can also be dangerous, as the information from Lutz Jesco show. Uncontrolled discharge can lead to painful symptoms such as swollen eyes or irritated airways.

A recently published article mentions that Thomas Wunsch has been working in the water industry since 1988 and will be presenting his new chlorine manual at Interbad 2024 in the next few months. This manual will be a valuable resource for both swimming pool operators and technicians to help prevent accidents caused by improper handling of chlorine gas.

Danger due to chlorine gas leaks

Fire and rescue personnel continue to be well trained and have standard procedures in place to deal with such emergencies. In order to ensure the safety of bathers and staff, it is important to take such incidents seriously and take preventative measures. There have been similar incidents in the past, such as in Bergheim, North Rhine-Westphalia, where children and adults were injured by chlorine gas leaks during swimming lessons.

The city of Mayen will take all necessary steps to ensure the safety of the public and to find out what led to this incident. It currently remains to be seen how long the swimming pool will remain closed and what further measures need to be taken to avoid such dangerous situations in the future.