DNA strand breaks detected by Comet assay in sputum leucocytes of workers exposed to fumes of bitumen: A pilot study

Abstract

degrees of DNA damage in epithelial cells (A: normal; B: damage with DNA strand breaks) and leucocytes (C: normal with DNA strand breaks in tail <1 OTM; D: damage with different DNA strand break levels) from induced sputum of workers exposed to fumes of bitumen. Figure 2: Olive tail moment distribution of blood lymphocytes of workers exposed to fumes of bitumen before and after shift (shift comparison P = 0.023, n = 43).