Computed Tomography Technologist Practice Exam

Question: 1 / 615

What is the average American background radiation exposure per year?

2mSv

3mSv

The average American background radiation exposure per year is approximately 3 mSv. This figure encompasses the natural radiation from cosmic sources, radon gas, and the earth as well as internal radiation from the food and water consumed. While individual exposure can vary based on geography, lifestyle factors, and local environmental conditions, the consensus among health organizations and studies places the average around this level.

It's essential to understand the concept of background radiation, as this exposure is a standard aspect of life and is generally considered safe. The data on radiation safety and risk assessments have been compiled over decades, providing a reliable picture of typical radiation exposure. Other figures around this average may represent specific populations or conditions but do not capture the national average as accurately as the 3 mSv statistic does.

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4mSv

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