The research activities of this group combine two areas; health hazards in work environments and industrial accidents. We are conducting health studies relating to physical agents such as vibrations, heat, cold, hazardous light and ionizing radiation, and also safety studies related to human-errors or organizationalerrors causing industrial accidents. In addition, we have been evaluating the safety and health performance of protective footwear, headgear, safety glasses, protective clothes, protective gloves for vibrations, etc. Other new techniques such as safety surveillance are also studied.