When did the surgeon general issue the first report indicating that secondhand smoke is dangerous to nonsmokers?

In 1964, the Surgeon General's report announced medical research showing that smoking was a definite cause of cancers of the lung and larynx (voice box) in men and chronic bronchitis in both men and women. Later reports concluded that smoking causes a number of other diseases such as cancers of the bladder, esophagus, mouth and throat; cardiovascular diseases; and reproductive effects. Today's new report, The Health Consequences of Smoking: A Report of the Surgeon General, expands the list of illness and conditions linked to smoking. The new illnesses and diseases are cataracts, pneumonia, acute myeloid leukemia, abdominal aortic aneurysm, stomach cancer, pancreatic cancer, Cervical cancer, kidney cancer and periodontitis.