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ICRPAEDIA: Exposure Categories and Situations

  EXPOSURE CATEGORIES AND SITUATIONS  

Categories of exposure and exposure situations are used to consider how best to approach radiological protection in different circumstances.

Categories of Exposure

Exposure Situations

Occupational Exposure
Exposure of workers incurred as a result of their work

Planned Exposure Situation
Situations where radiological protection can be planned in advance, and exposures can be reasonably predicted

Medical Exposure
Exposure of patients as part of their diagnosis or treatment, volunteers helping in the support and comfort of patients, and volunteers in biomedical research

Existing Exposure Situation
Situations that already exist when a decision on control has to be taken

Public Exposure
Exposure of members of the public other than occupational and medical exposures, and not including the normal local natural background radiation

Emergency Exposure Situation
Unexpected situations that may require urgent protective actions

Occupational Exposure

Public Exposure

Medical Exposure

Planned Exposure Situation

e.g. working in a hospital, uranium mine, or nuclear power plant

e.g. visiting a hospital, living near a nuclear power plant

e.g. getting an x-ray, CT scan, or radiation treatment

Existing Exposure Situation

e.g. aircrew and astronauts exposed to radiation from outer space

e.g. radon gas in the home

n/a

Emergency Exposure Situation

e.g. in the immediate response to an accident

e.g. during a major accident

n/a

Read on to learn about radiation dose


▶ Further Reading: Quotes from ICRP Publications