Cigarettes: Chemical Effects of Sodium Nitrate Content

Science  28 Jun 1968:
Vol. 160, Issue 3835, pp. 1456
DOI: 10.1126/science.160.3835.1456


Although addition of sodium nitrate to cigarettes is reported to reduce the components and properties of cigarette smoke that are associated with tumorigenicity, we find that the additive nevertheless significantly increases the levels of certain vapor-phase constituents of smoke that are known to inhibit ciliary movement; and also it produces other effects of questionable value.