Cytogenetic study of a group of workers exposed to thinner.
The frequency of sister-chromatid exchanges (SCE) was evaluated in a group of 24 workers exposed to thinner in a luminous advertisements factory and in three workshops for painting sheet metal in Mexico City. 50 metaphases for each exposed individual and each control were analysed; air samples of the working places were also studied; it was observed that among all the components of thinner, only benzene exceeded advisable limits. The cytogenetic data were subject to one-way analyses of variance indicating that no significant differences existed between both groups; also, there are no significant differences among workers with a long exposure time and those with fewer than 5 years of exposure. Nevertheless, use of tobacco increased significantly the SCE frequencies among the exposed group, but did not increase SCE in the control group.
Souza
V
V
Departamento de Ecologia, UNAM, Mexico DF.
Puig
M
M
D000395:Air Pollutants, Occupational / Q000494:pharmacology; D006801:Humans; D008214:Lymphocytes / Q000187:drug effects / Q000648:ultrastructure; D009790:Occupations; D012854:Sister Chromatid Exchange / Q000187:drug effects*; D012907:Smoking; D012997:Solvents / Q000494:pharmacology*; D013997:Time Factors
D000395:Air Pollutants, Occupational; D012997:Solvents