This Day in History: 1964-10-15

Air pollution not linked to disease according to a report released by the American Cancer Society on this day in 1964. Scientists conducting the study said air pollution in California was not causing a statistically significant rise in disease. The four year study of 65,000 non-smokers failed to establish a link between disease and air pollution. The report’s authors “refused to say outright that smog was not a public health menace,” the New York Times reported. But it may be, the reports authors said, that it would take 20 or 30 years for effects to be noticed.