Inhalation experiments with 14C-labelled cigarette smoke. I. Determination of the effectiveness of two different smoking systems with labelled cigarettes.

Two different smoking systems were tested by exposing Syrian golden hamsters to the smoke of cigarettes labelled with (14C)dotriacontane-16, 17 (DOT). In 3 experiments, the activity of mainstream and sidestream Total Oarticulate Matter (TPM) and of butts and ash was determined. Comparing the results, the system involving individual exposure was shown to provide the animals with higher amounts of mainstream TPM than the system using simultaneous exposure of numerous animals.