Community Medicine (PSM) · Environmental Health (Water, Air, Sanitation, Radiation, Housing)

Under international radiation protection norms followed in India, the effective dose limit for members of the GENERAL PUBLIC from planned exposure sources, excluding natural background and medical exposure, is:

  • A 100 mSv per year
  • B 50 mSv per year
  • C 20 mSv per year averaged over 5 years
  • D 1 mSv per year
Correct answer: D. 1 mSv per year

Explanation

The effective dose limit for individual members of the public is 1 mSv per year from planned practices, deliberately set far below the occupational limit precisely because public exposure is unavoidable, unmonitored and includes children and pregnant women. The figure of 20 mSv per year averaged over 5 years applies to radiation workers, and 50 mSv was the older worker limit. Natural background and medical exposures are excluded because they are governed by justification and optimization, not dose caps.

Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

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