CONCEPT OF ACCIDENT. What is hazard?. A hazard is any source of potential damage, harm or adverse health effects on something or someone under certain conditions at work.
A common way to classify hazards is by
An accident is an unplanned event, which could result in injury to persons, or in damage to plant and equipment or both
A general definition of adverse health effect is "any change in body function or the structures of cells that can lead to disease or health problems".