Figure 1.

BaP daily dose from environmental sources versus BaP dose from mainstream of daily smoked cigarettes. Figure shows linear correlation between daily dose of Env-BaP and MS-BaP dose of 15 non-smoking and 15 smoking newsagents, in Genoa, during 1998. MS-BaP dose was estimated from mean BaP content in FFL cigarettes mainstream [1]. Dotted curves define 95% confidence limits, according uncertainty of measured BaP air concentrations and variability of BaP quantity estimated in mainstream of FFL cigarettes sold in U.S. and Italian market, from 1995 and 2000.