Van Duuren, Benjamin L.

Scope and Contents Examination at the conference of the manufacture and uses of this major chemical industry intermediate, of which some 10 billion pounds is manufactured annually in the United States and most of which is converted to vinyl chloride monomer, showed that although there is a high volume of potential exposures to ethylene dichloride, largely within the chemical industry, the level of exposure is low from the industry point of view, whereas it is worrisome to researchers studying the mutagenicity...

Scope and Contents The conference heard presentations of evidence, such as declining lung cancer incidence among younger age groups in the United Kingdom, and United States studies reporting lower rates of lung cancer among filter-cigarette smokers and a reduced frequency of bronchial lesions in hospital patients of recent years (with known smoking frequencies) compared with similar groups of patients 15 years earlier. All of this evidence indicates that the risk of smoking-related lung cancer is being reduced...