Tamil Nadu Industrial Gas Leak Kills 8 Migrant Workers; Safety Lapses Found
Tamil Nadu has witnessed its deadliest industrial ammonia gas leak, claiming the lives of eight migrant women workers at a private seafood processing unit in Tiruvallur district. Sixty-eight others were hospitalised, with some in intensive care on oxygen support. The incident occurred on a Sunday when workers were resting in factory accommodation, preventing a higher casualty count had it been a working day.
Since the 1980s, the state has faced recurring ammonia leaks in factories, mostly in and around Chennai. While previous incidents, including a 2024 leak in Thoothukudi that killed one worker and a major 2023 leak in Ennore during Cyclone Michaung, resulted in hospitalisations but no fatalities, the Tiruvallur tragedy indicates that the colourless, pungent gas accumulated at fatal concentrations.
A committee comprising the Director of Industrial Safety and Health (DISH), the Member Secretary of the Tamil Nadu Pollution Control Board, and the Additional Director of Public Health is investigating. Preliminary reports reveal that the factory, St. Peter & Paul Seafood Exports Pvt. Ltd., had not rectified serious deficiencies noted during an earlier DISH inspection, including the absence of a suitable alarm system and a fire hydrant. It also lacked revised plan approval for an ice-flaking machine, a matter currently sub judice.
Experts suggest that had the recommendations made by DISH after the Ennore leak been universally enforced in factories using ammonia, the scale of this tragedy could have been contained. Those recommendations included installing adequate ammonia sensors, water-curtain systems linked to alarms, and fire-water nozzles for ammonia feed pumps.
In response, the state government has ordered a committee to inspect all 6,669 hazardous industries. However, existing rules such as the Tamil Nadu Control of Industrial Major Accident Hazards Rules, 1994, already provide checks and balances. The key need is strict enforcement through a coordinated approach, stronger penalties for violators, and political will to act decisively.
