For example, polycyclic aromatic hydrocarbons such as benzopyrenes from wood smoke are toxic. (healthyeating.sfgate.com)
As expected, the mutational spectrum was enriched for G - > T and C - > A changes associated with adduct formation on guanine nucleotides induced by benzopyrene, the chemical mutagen found in tobacco smoke. (massgenomics.org)
Simply by living and breathing in Krakow for a year, a resident inhales as much benzopyrene, a highly carcinogenic pollutant, as he or she would from smoking 2,500 cigarettes, according to an analysis by the activist group Bankwatch. (news.nationalgeographic.com)