Tobacco constituent extraction from snus during consumer use

(Science Codex) Scientists at British American Tobacco have used a multi-analyte approach to determine the level of exposure to tobacco constituents of snus users. The results show that, generally, less than a third of each constituent measured was extracted by consumers during use.
Snus is a moist snuff that is placed under the upper lip. Epidemiological evidence, particularly from Sweden, suggests that snus use is substantially less hazardous than cigarette smoking ... Continued