Figure 6

Increasing acetonitrile levels found in the exhaled breath after smoking.
a) Acetonitrile concentrations in the breath of 4 volunteers after they smoked type A cigarettes; the break is from 14-20 hours. b) Acetonitrile concentrations in the breath of 25 volunteers after they smoked type B cigarettes; the acetonitrile concentrations were normalized to the initial concentrations measured immediately after smoking.