TABLE 6

Average Annual Effective Dose Equivalent to a Member of the U.S. Population (14,16)

SourceEffective/whole-body dose
Average annual dose to U.S. population from all sources6.2 mSv (0.62 rem)
Radon & thoron2.28 mSv (0.228 rem)
Conventional radiography & fluoroscopy0.33 mSv (0.033 rem)
Computed tomography1.47 mSv (0.147 rem)
Nuclear medicine0.77 mSv (0.077 rem)
Consumer products0.13 mSv (0.013 rem)
Cosmic radiation0.33 mSv (0.033 rem)
Terrestrial radiation0.21 mSv (0.021 rem)