Question 15890 — work accidents and occupational diseases

Summary

Mr. Pierre-Yves Cadalen draws the attention of the Minister of Health, Families, Autonomy and People with Disabilities to the alarming situation of chloramine poisoning in municipal swimming pools. In France, municipal swimming pools are particularly important facilities in the landscape of local authorities. Their use is strictly conditional on a guarantee of water quality. For this, swimming pools use chlorine-based products with a maximum threshold of 0.6 mg/L. The presence of chlorine in water does not present any immediate danger in small proportions. However, when it combines with organic matter such as sweat or urine, it transforms into a toxic gas called trichloramine. Upon contact with this gas, numerous respiratory symptoms and occupational illnesses are possible. The National Security Agency health (Anses) launched the alert in March 2025. It noted widespread unhappiness at work. Out of a total of 474 lifeguards, 75% reported sore throats, 80% had regular eye inflammations and nearly 85% noted chronic fatigue due to pool health management. Several pathologies also appear, such as recurrent rhinitis, asthma and other chronic respiratory failures. THE The link between these pathologies and exposure to chlorinated products remains difficult to prove for exposed personnel. Occupational medicine, initially, mainly diagnoses simple viral symptoms. Their recognition as an occupational disease is longer and more difficult. For some, it takes on average 3 to 5 years to establish the link between working conditions and symptoms. In this case, the lack of control of the air in swimming pools, in particular the level of trichloramine, does not guarantee the safety of users and professionals. This inaction also goes against ANSES's recommendations. The swimming pools also lack a quality ventilation system which would allow better risk prevention. Finally, since November 29, 2025, the Government has stopped requiring communities to carry out emptying annual. This relaxation further increases the concentration of combined chlorine in the water and further exposes professionals and users to contamination. He asks her what urgent measures she intends to take, faced with this observation, to respond to the health emergency to which lifeguards and users are exposed.

Machine translation from French. The official text remains authoritative.

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