Final answer:
Certain job functions and exposure to hazardous substances can contribute to occupational exposure. Regulatory bodies or organizations, such as OSHA, set occupational exposure limits to protect workers from excessive exposure to hazards.
Step-by-step explanation:
Most occupational exposures are caused by absorption through exposed skin in certain job functions. This can include the face, hands, forearms, neck, and chest. Inhalation of hazardous substances can also contribute to occupational exposure, particularly in closed environments or when working with certain equipment.
Occupational exposure limits are typically set by regulatory bodies or organizations that aim to protect workers from excessive exposure to hazards. In the context of radiation, organizations such as OSHA (Occupational Safety and Health Administration) establish standards and limits for radiation exposure in various industries.
For example, OSHA has standards that require employers to prevent exposure to harmful chemicals, provide personal protective equipment, and comply with specific safety measures to protect workers from hazardous conditions.