What statement correctly describes the relationship between ALI and DAC?

Study for the NANTeL Radiation Worker Training Test. Learn with multiple choice questions covering essential safety procedures. Equip yourself with answers, hints, and explanations. Prepare thoroughly for your certification exam!

Multiple Choice

What statement correctly describes the relationship between ALI and DAC?

Explanation:
ALI is the maximum amount of radioactive material a person can inhale in a year, while DAC is the concentration of that material in the air that would lead to reaching that ALI if breathed for a year. The standard assumption is that a worker inhales about 2,000 cubic meters of air in a year, so the relationship is ALI = DAC × 2,000 m^3. Therefore, 2,000 times the DAC value equals the ALI. This keeps the units consistent—DAC is in Bq/m^3 and ALI is in Bq.

ALI is the maximum amount of radioactive material a person can inhale in a year, while DAC is the concentration of that material in the air that would lead to reaching that ALI if breathed for a year. The standard assumption is that a worker inhales about 2,000 cubic meters of air in a year, so the relationship is ALI = DAC × 2,000 m^3. Therefore, 2,000 times the DAC value equals the ALI. This keeps the units consistent—DAC is in Bq/m^3 and ALI is in Bq.

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