World Environmental Health Day is associated with the initiative of which organization?

World Environmental Health Day is observed annually on September 26 to raise awareness about the relationship between human health and the environment and to promote a clean and sustainable environment. This day is associated with the IFEH and focuses on issues such as air and water pollution, sanitation, waste management, food safety, and climate change; significant initiatives in India include the Swachh Bharat Mission, Jal Jeevan Mission, and NCAP.