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This study included three different experiments for benzene exposures associated with active smoking. In the first experiment, the mean exhaled breath benzene concentrations measured 1 min after an active smoke ranged from 58.1 to 81.3 μg/m3, depending on the commercial cigarette brand, while those measured prior to an active smoke ranged from 15.9 to 19.2 μg/m3. The postexposure breath concentrations...
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