inhalation toxicology Biological hazards 1 Chemical hazards 1 Fire and explosion 1 Metals 1 Physical hazards 1 Toxicology 1 Toxicology , basics 1 Work place health 1 accidents prevention in work place 1 biohazard 1 polymers 1 prevention of accidents in work place 1 radiation 1 toxicology, inhalation 1