Adverse impact on people, including fatality, physical or psychological injury, or short or long term damage to health.

Potential to cause harm, e.g. A physical situation or state of a system, often following from some initiating event that may lead to an accident.

The continually updated record of the hazards, accident sequences and accidents associated with a system. It includes information documenting risk management for each hazard and accident.

Any substance or preparation which is very toxic, toxic, harmful, corrosive or irritant or has a Workplace Exposure Limit (WEL) or any other substance that creates a risk to health because of its properties and the way it is used or is present in the workplace.