Table 1.

Mainstream smoke nicotine, TSNA, PAH levels, and nitrate content in research cigarettes made from different tobacco varieties (with 95% confidence intervals)

Smoke nicotine (mg/g tobacco)Smoke TSNA (ng/g tobacco)
Smoke PAH (ng/g tobacco)
Nitrate content (ppm/g tobacco)
NNNNNKIARC 10 PAHsRemaining 11 PAHs
Burley5.40 ± 0.091,970.27 ± 81.87174.12 ± 3.84158.61 ± 3.572,838.34 ± 70.98136.52 ± 7.34
Bright3.97 ± 0.1035.30 ± 3.1635.94 ± 4.00213.31 ± 9.782,670.57 ± 136.9413.01 ± 1.46
Oriental1.53 ± 0.0384.23 ± 5.4225.12 ± 2.32210.54 ± 6.072,661.13 ± 72.7431.36 ± 5.11
Reconstituted0.48 ± 0.02241.70 ± 7.13326.92 ± 7.3879.95 ± 5.121,458.49 ± 100.66202.80 ± 15.41
Blend I3.14 ± 0.07486.68 ± 22.39143.69 ± 7.51163.18 ± 11.062,065.23 ± 128.1280.38 ± 9.33
Blend II2.42 ± 0.06534.92 ± 23.58179.70 ± 5.82171.22 ± 14.052,306.71 ± 127.73102.06 ± 8.49
  • NOTE: Ten PAHs listed in IARC monograph 83. All cigarettes were smoked under ISO smoking regimen. Mainstream smoke emission constituents were normalized by tobacco weight consumed during smoking. Nitrate contents were normalized by tobacco weight.