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Tobacco and Public Health - TCSC Indonesia

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ILSE HOFFMANN AND DIETRICH HOFFMANN 59<br />

Development of highly sensitive analytical methods, as well as reproducible shortterm<br />

<strong>and</strong> long-term assays, has led to the identification of 69 carcinogens in cigarette<br />

smoke (Table 4.4). Of these, 11 are known human carcinogens (Group I), 7 are probably<br />

carcinogenic in humans (Group 2A), <strong>and</strong> 49 of the animal carcinogens are possibly<br />

carcinogenic to humans (Group 2B). This classification of the carcinogens is according<br />

to the International Agency for Research on Cancer (IARC) (1983, 1984, 1986b, 1988,<br />

1990, 1991, 1992, 1994a, b, c, d, 1995a, b, 1996, 1999a, b). Two suspected carcinogens<br />

have, so far, not been evaluated by the IARC.<br />

Table 4.4 Carcinogens in cigarette smoke<br />

Agent Conc./nonfilter IARC evaluation of<br />

cigarette carcinogenicity<br />

in lab animals in humans Group a<br />

PAH<br />

Benz(a)anthracene 20–70 ng Sufficient 2A<br />

Benzo(b)fluoranthene 4–22 ng Sufficient 2B<br />

Benzo(j)fluoranthene 6–21 ng Sufficient 2B<br />

Benzo(k)fluoranthene 6–12 ng Sufficient 2B<br />

Benzo(a)pyrene 20–40 ng Sufficient Probable 2A<br />

Dibenz(a,h)anthracene 4 ng Sufficient 2A<br />

Dibenzo(a,l)pyrene 1.7–3.2 ng Sufficient 2B<br />

Dibenzo(a,e)pyrene Present Sufficient 2B<br />

Indeno(1,2,3-cd)pyrene 4–20 ng Sufficient 2B<br />

5-Methylchrysene 0.6 ng Sufficient 2B<br />

Heterocyclic compounds<br />

Quinoline b 1–2 ng<br />

Dibenz(a,h)acridine 0.1 ng Sufficient 2B<br />

Dibenz(a,j)acridine 3–10 ng Sufficient 2B<br />

Dibenzo(c,g)carbazole 0.7 ng Sufficient 2B<br />

Benzo(b)furan Present Sufficient 2B<br />

Furan 18–37 ng Sufficient 2B<br />

N-Nitrosamines<br />

N-Nitrosodimethylamine 2–180 ng Sufficient 2A<br />

N-Nitrosoethylmethylamine 3–13 ng Sufficient 2B<br />

N-Nitrosodiethylamine ND–2.8 ng Sufficient 2A<br />

N-Nitroso-di-n-propylamine ND–1.0 ng Sufficient 2B

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