Toxic chlorine gas in the swimming pool: Major rescue operation in Mayen!

Toxic chlorine gas in the swimming pool: Major rescue operation in Mayen!

On the evening of June 18, 2025, toxic chlorine gas escaped from a swimming pool in Mayen, Mayen-Koblenz district. This incident required extensive rescue efforts. As the Saarbrücken newspaper Reportedly, around 80 police, fire and rescue services were on site to deal with the situation. In a precautionary warning, the city administration called on residents to close windows and doors within a radius of 200 meters and turn off ventilation.

Measurements were carried out during the night and did not reveal any increased levels of pollutants in the air. Still, the city recommended avoiding the area to avoid potential health risks. The incident caused great concern and led to a massive intervention by the authorities.

Injuries and safety measures

A similar incident occurred in Lower Saxony, more precisely in an open-air swimming pool in Neu Wulmstorf, where chlorine gas leaked into the technical room on Friday morning. According to a report by Day24 Two employees who inhaled the chlorine gas suffered minor injuries and were taken to hospital for treatment. At the time of the spill, no bathers were directly affected, but they were sent home as a precaution. The technical room had undergone maintenance work in the previous days, which is why it remains unclear whether there is a connection to the incident.

Almost 70 firefighters were on duty in Neu Wulmstorf, who also secured six chlorine gas bottles and closed them again. The rapid response of the rescue workers prevented any possible danger to the public, and measurements revealed no further danger in and around the building. The outdoor pool was immediately closed; A reopening cannot be ruled out at the moment as the technical systems and safety aspects need to be checked.

Chlorine gas and its risks

Chlorine gas is often used to disinfect water in swimming pools, but can irritate the respiratory tract and have health consequences. The incidents in Mayen and Neu Wulmstorf show how critical the situation can become due to the improper use of chlorine systems in public facilities. Strict regulations apply to the use of these dangerous substances to ensure the safety of bathers and employees.