OHS 508 Study Guide - Final Guide: Safety Data Sheet, Polycyclic Aromatic Hydrocarbon, Vapor Pressure

• School: Ryerson University
• Department: Occupational Health
• Course: OHS 508
• Professor: Marcia Maguire

Document Summary

Study of effects of an agent on a living organism. Chemical (lead), physical(radiation), biological (mycotoxins from fungus) Hazard: aka risk. probability that toxic substance can present in body in sufficient amount to cause harm. Mercury causes damage to lungs high dose (inhalation). Health hazards associated with toxicants depends on 6 factors: physical/chemical properties, exposure dose, exposure conditions, route of entry. Physical/chemical properties exists in chemical, physical or biological forms and affects the body differently individual susceptibility. Degree of hazard associated with each one will be different. Different things are more poisonous than others. Ex: sugar has low poison capability, vs spider bites. Ohs 508 occupational health : dose makes the poison vs remedy - paracelsus, studying dose= studying 2 elements that are involved in determining, acute & chronic exposure dose: concentration, length. Acute exposure: single event, agent is large dose, absorption is rapid, aka.