Taking into consideration the data of Table 1 for the radionuclide concentrations (Bq kg 1 ) in tobacco dry leaves, the fraction of the radionuclide activity concentration that is recovered from cigarette tobacco to cigarette smoke is 0.75 (75 %), as on the average, about 75 % of the radioisotope in the cigarette tobacco was contained in the cigarette smoke, which is partially inhaled and deposited in the lung tissues and about 25 % was retained in the cigarette filter and ash [18] and the most recent dose conversion coefficients of the radionuclides (Sb Bq 1) for the case of inhalation for adults (smokers) as presented in Table 2, then the data of Table 3 are derived for the annual effective dose, H E (Sv y 1 ), due to inhalation for adults (smokers), according to the equation: where M T (kg y 1 ) refers to the annual amount (in mass) of tobacco consumed, Ci (Bq kg 1 ) refers to the concentration of the ith radionuclide, and F (Sv Bq 1 ) refers to the dose conversion factor [2528]

Some of the most common effects include: Euphoria This intense feeling of pleasure and happiness is short-lived but can be highly addictive, leading people to seek out the drug repeatedly
Kreteks, also known as clove cigarettes, are imported from Indonesia and contain a blend of tobacco, cloves, and other additives, which allows for deeper inhalation compared to commercial cigarettes
Cellulose Acetate: The filter on most cigarettes is made from a form of plastic, cellulose acetate, which is not biodegradable