Chapter 7 
ULTRALOW-YIELD Yields from the ultralow cigarette may differ from yields from 
CIGARETTES other cigarettes. Figure 6 shows data from another study of 
smokers of cigarettes of different 5delds compared by category of FTC nicotine 
(Benowitz et al., 1986b). The high-yield category was 1.0 mg of nicotine or 
higher; the low was 0.60 to 0.99 mg; the very low was 0.20 to 0.59 mg; and 
the ultralow was less than 0.20 mg nicotine per cigarette by FTC method. 
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Figure 6 
Expired carbon monoxide, plasma thiocyanate, blood nicotine, and cotinine 
concentrations in 248 habitual smokers of cigarettes according to FTC yield 
40 
35 
30 
25 
30 
25 
20 
175 
150 
125 
20 
15 
10 
350 
300 
250 
200 
150 
<0.20 0.20-0.59 0.60-0.99 al.OO 
FTC Nicotine Yield (mg) 
® Significant difference compared with other yields. 
Key: ppm = parts per million. 
Source: Benowitz et al., 1986b. 
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