A simple safety device called a slip line is installed into pipes to serve as a watertight seal and blocks the flow of water. In this case for unknown reasons, Union Carbide did not have any slip lines installed, so water was freely allowed to move through pipes and into the MIC tanks (Bowonder).

Impact of methyl isocyanate leak Methyl isocyanate gas leak killed more than 15,000 people and affected over 600,000 workers. The stillbirth rate and the neonatal mortality rate increased by up to 300% and 200% respectively. The gas leak impact trees and animals too.

WASHINGTON — The deadly gas leak in Bhopal, India, could have been prevented if Union Carbide Corp. had met its own plant safety recommendations and Indian officials had examined worker complaints, two international labor groups said today.

Answer: The main lesson to be learned from the Bhopal Gas Disaster is as follows about the dangers of the chemicals that we use everyday. The most important lesson that has not been learned is how to prevent future leaks. Safety measures reduce the chances of leaks, but many leaks still occur all over the world.

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The single worst industrial accident in history occurred on December 3, 1984, when some 45 tons of the dangerous gas methyl isocyanate escaped from the Union Carbide plant in Bhopal, India.

Ten deadliest natural disasters by highest estimated death toll excluding epidemics and famines

December 3, 1984: The Bhopal disaster in India is one of the largest industrial disasters on record. A runaway reaction in a tank containing poisonous methyl isocyanate caused the pressure relief system to vent large amounts to the atmosphere at a Union Carbide India Limited plant.

This factor is considered responsible for the explosion.

• The disaster of Courrières (France)
• The explosion of Benxihu Colliery (China)
• Bhopal accident, India.
• The Deepwater Horizon oil disaster.
• The Chernobyl disaster (Ukraine)