NRSB RRS Practice Questions - NRSB Radon Reduction Mitigation Specialist (RRS) Exam

The lung-cancer risk from radon exposure is primarily caused by which mechanism?

Alpha particles emitted by short-lived decay products (polonium-218 and polonium-214) that deposit in lung tissue Gamma radiation emitted directly by radon gas penetrating the chest from outside the body Beta particles from lead-214 absorbed through the skin Radon gas dissolving into the bloodstream and concentrating in bone marrow

Correct Answer:

Alpha particles emitted by short-lived decay products (polonium-218 and polonium-214) that deposit in lung tissue

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