I read the research finding of Benites et al. (2006) with great interest. They showed an increased level of micronuclei (MN) and some nuclear anomalies in exfoliated buccal mucosa cells (BMC) of gas station attendants. These results are in very good agreement with data of Turkish investigators who studied the same problem (Celik et al., 2003). Brazilian researchers showed a 4.8-fold increase in the number of buccal cells with MN in exposed subjects, while it was 2.9-fold higher in Turkish gas station attendants. The nuclear anomalies – binucleates – were 1.85- and 2.7-fold more frequent in Brazilian and Turkish attendants, respectively, compared with non-exposed subjects. Read more. . .