چکیده (انگلیسی):

In this study 11 commercial roll-your-own (RYO) tobacco brands sold in Spain and the reference
tobacco 3R4F have been smoked and several components of the mainstream tobacco
smoke have been analyzed. Cigarettes were prepared using commercial tubes, and were
smoked under smoking conditions based on the ISO 3308. The gaseous and condensed
fractions of the smoke from RYO brands and 3R4F have been analyzed and compared. RYO
tobaccos, as opposed to 3R4F, present lower amounts of condensed products in the traps
than in the filters. In general, RYO tobaccos also provide lower yields of most of the compounds
detected in the gas fraction. The yield of CO is between 15.4 and 20.4 mg/cigarette.
In most of the cases studied, RYO tobaccos deliver higher amounts of nicotine than the 3R4F
tobacco. On average, the yield of the different chemical families of compounds appearing
in the particulate matter retained in the cigarette filters tends to be around three times
higher than those obtained from 3R4F, whereas similar values have been obtained in the
particulate matter retained in the traps located after the filters. It can be concluded that
RYO tobaccos are not less hazardous than the reference tobacco, which may be contrary to
popular belief.