The Air (Prevention and Control of Pollution) Act of 1981 was enacted in India to address rising air pollution issues from factors such as improper industrial practices and environmental conditions. It established a Central Pollution Control Board and State Pollution Control Boards to regulate air pollution. The boards are empowered to declare air pollution control areas, prohibit fuels that cause pollution, issue directions on emission standards, and plan and execute air pollution prevention programs. The Act also defined key terms around air pollution and outlines the roles and responsibilities of the central and state pollution control boards.