When is National Pollution Control Day observed?

National Pollution Control Day is observed annually in India on December 2 in memory of the people who lost their lives in the 1984 Bhopal Gas Tragedy. The Bhopal disaster was a gas leak incident at the Union Carbide India Limited (UCIL) pesticide plant on December 2-3, 1984, which killed thousands of people. It is considered among the worst industrial disasters in the world. The National Pollution Prevention Day works towards spreading awareness regarding the pollution caused by industrial processes and industrial disasters.