Figure 11From: Comparison of stainless and mild steel welding fumes in generation of reactive oxygen speciesComet assay results after incubation of RAW 264.7 cells for 1 h exposed to 250 μg/ml welding fume. Data presented are means of ± S.D. for 4 sets of experiments. (*) indicate a significant increase in DNA damage compared to control. (+) indicate significant difference between metal types at the same sizes. (P < 0.05)Back to article page