Overview
- Authorities activated the ORSEC NoVI numerous‑victims plan as firefighters and medical teams evacuated the Stade Nautique Nemausa on December 2.
- Officials report 106 people exposed, including 93 primary‑school pupils, with 14 classified in relative emergency and three transported to the regional university hospital.
- Preliminary accounts from emergency services point to a reaction involving sulfuric acid and chlorine during resupply operations that generated the gas release.
- The Nîmes prosecutor has opened a judicial inquiry for involuntary injuries, and technical inspections are underway at the facility.
- Medical guidance warns that chlorine inhalation can trigger delayed respiratory complications, with hospital observation recommended for up to 48 hours for those affected.