Introduction to Occupational Hygiene

Question 1

Occupational Hygiene

Answer 1

Discipline of anticipating, recognising, evaluating and controlling health hazards in the working environment with the objective of protecting worker health and well-being

Anticipation (identifying potential hazards before introduced), recognition (identifying the hazard the agent poses to health), evaluation (extent of exposure to hazard), control (where evaluation indicates this is necessary)

Question 2

Health Hazards

Answer 2

Chemical agents
Physical agents
Biological agents
Ergonomic factors
Psychosocial factors

Question 3

Dose

Answer 3

The product of concentration of the substance and duration of exposure to it

Dose = Exposure x Time

Question 4

Routes of Entry

Answer 4

3 primary ways a substance may enter or on the body are through:

• Inhalation
• Skin absorption
• Ingestion