Tamil Nadu Ammonia Gas Leak: A major industrial disaster unfolded in Tamil Nadu’s Tiruvallur district after a toxic ammonia gas leak at a private seafood processing facility left five workers dead and scores hospitalized.
The incident occurred at a shrimp and fish meal processing facility located in Kannigaipair village near Periyapalayam.
The tragedy has reignited severe concerns over industrial safety protocols and the living conditions of interstate migrant laborers.
According to official health bulletins, the death toll stands at seven, while over 60 workers remain under intensive medical care across multiple facilities.
Toxic Fumes Infiltrate Worker Quarters
Tamil Nadu Ammonia Gas Leak: The leak reportedly originated during routine operations in the production and cooling section of the plant. Ammonia is widely used as an industrial refrigerant in cold storage units connected to seafood export facilities.
Preliminary reports from local administrative sources suggest that a malfunction or breach in a measuring valve allowed the gas to escape.
Although the incident occurred during a shift gap, approximately 120 migrant workers primarily women from northern and eastern states including Odisha, Assam, and Jharkhand were present inside the factory complex. The plant premises also housed the workers’ residential quarters.
As the dense, highly irritating ammonia gas escaped, it rapidly drifted toward the living areas. Workers were caught completely off guard, instantly experiencing severe symptoms.
Eyewitnesses and medical officials reported that the victims suffered from intense breathlessness, acute irritation of the eyes and respiratory tract, coughing, and nausea.
According to regional media reports, some victims suffered severe internal trauma, exhibiting bleeding from the nose and mouth due to high concentration exposure.
Casualty Figures Clarified by Health Authorities
Tamil Nadu Ammonia Gas Leak: In the immediate aftermath of the tragedy, conflicting reports emerged regarding the exact death toll. However, official press releases from the district administration and subsequent updates from the Tamil Nadu Health Department later clarified the verified figures.
According to state health officials, two female workers were confirmed dead on the first evening. Later, three more victims succumbed to their injuries during treatment, bringing the total number of verified fatalities to five.
The first two victims were identified as 19-year-old Jumani Juwang and 20-year-old B. Malothi, both migrant workers from Odisha.
State medical officers noted that an industrial ammonia leak of this scale and concentration causes rapid respiratory distress, adding that some patients currently on ventilator support are being monitored closely.
Massive Rescue Operations and Hospitalizations
A total of over 60 individuals were directly affected by the chemical inhalation. Emergency services, including local fire and rescue teams, police personnel, and public health units, rushed to the site shortly after the alarm was raised.
Given the hazardous nature of the chemical spill, a specialized 30-member team from the National Disaster Response Force (NDRF) was deployed to the site.
Equipped with specialized gas detection devices and Personal Protective Equipment (PPE), the NDRF team successfully isolated the hazardous zone, plugged the leak, and evacuated the remaining trapped workforce.
According to official medical updates, dozens of people are currently undergoing treatment across various institutions, including Vels Hospital, Venkateshwara Hospital, and the Government Stanley Medical College Hospital in Chennai for advanced toxicological care.
High-Level Probe Ordered; Factory Owner Detained
Tamil Nadu Chief Minister M. K. Stalin expressed profound shock over the incident and announced an immediate ex-gratia payment of ₹2 lakh each to the families of the deceased from the Chief Minister’s Public Relief Fund.
The state government has also committed to coordinating with respective state administrations to transport the mortal remains of the deceased workers back to their native places.
To determine the exact structural cause of the leak and assess safety lapses, the government has ordered a high-level inquiry.
The probe panel includes the Director of Industrial Safety and Health, the Member Secretary of the Tamil Nadu Pollution Control Board (TNPCB), and senior public health officials.
Legal Action Taken: Local law enforcement has registered a First Information Report (FIR) regarding criminal negligence and industrial safety violations.
According to police sources, the owner of the seafood processing facility has been detained for rigorous questioning regarding safety compliances and structural maintenance of the cold storage valves.
State Supervision and Condolences
State Health Minister Ma. Subramanian, along with District Collector S. Kavitha and Superintendent of Police Sai Praneeth, visited the site and monitored the relief operations at the hospitals.
The ministers assured that the best possible medical care is being provided to all the affected workers free of cost.
Tamil Nadu Governor R.N. Ravi also expressed deep grief over the tragedy, conveying his heartfelt condolences to the bereaved families and praying for the speedy recovery of those undergoing emergency medical treatment.
Following the incident, the state infrastructure and safety wings are planning mandatory safety audits of all active cold storage and chemical processing units across the industrial belts to prevent such structural failures in the future.
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