Evaluating Risk and the Adequacy of Existing Controls

Determine risk

The risk from the hazard should be determined by estimating the potential severity of harm and the likelihood that harm will occur by considering the adequacy of any existing controls.

Severity of harm

Information obtained about work activities is a vital input to risk assessment. When seeking to establish potential severity of harm, the following should also be considered:

• Part(s) of the body likely to be affected; 
• Nature of the harm, ranging from slightly to extremely harmful:

1. slightly harmful, e.g.: superficial injuries; minor cuts and bruises; eye irritation from dust;nuisance and irritation (e.g. headaches); ill-health leading to temporary discomfort; 
2. harmful, e.g.lacerations; burns; concussion; serious sprains; minor fractures;deafness; dermatitis; asthma; work related upper limb disorders; ill-health leading to permanent minor disability:
3. extremely harmful, e.g.amputations; major fractures; poisonings; multiple injuries; fatal injuries; occupational cancer; other severely life shortening diseases; acute fatal diseases.

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