Dr. Leroy Burney, Surgeon General of the United States Public Health Service, and other authorities discuss the hazards of air pollution, its major causes and what is being done to control it. The film shows air sampling apparatus and an exhibit and scenes from the Community Air Pollution Conference in Washington, D.C. Learn more about this film and search its transcript at NLM Digital Collections: http://resource.nlm.nih.gov/8800144A Learn more about the National Library of Medicine's historical audiovisuals program at: https://www.nlm.nih.gov/hmd/collections/films