DNA-damage in blood of welders occupationally exposed to welding fume using comet assay

Welding workers exposed to various risks resulting in different harms, hazard health effects, and even, sometimes, death. Moreover, air pollution that results from welding operation leads to consequent human hurts. Therefore, this study comes to investigate the potential DNA damage as an indicator of health problems in welding workers. In this study, blood samples of forty welders and twenty non-welders were collected, and Oxiselect comet assay kit was used. The results showed that there were a significant change in low, and high comet percentage of control compared to welders, while there was no significant difference in medium comet percentage between control and welders.