Relative Doses from Radiation Sources Reprinted from EPA.gov RELATIVE DOSES FROM RADIATION SOURCES All doses from the National Council on Radiation Protection & Measurements, Report No. 160 (unless otherwise denoted) Whole body CT (single procedure) millirems millisieverts (mrem) (mSv) 1,000 10 Upper gastrointestinal X-ray (single procedure) Radori in average U.S. home (annual) 228 mrem 2.28 mSv 700 7.50 600 mrem 6 mSv Head CT (single procedure) Cosmic radiation living in Denver (high elevation) (annual) 200 mrem 2mSv Cosmic radiation living at sea level (low elevation) (annual) 80 mrem 0.8 mSv 500 5.0 42 mrem 0.42 mSv Mammogram (single procedure) From ICRP 2007 Terrestrial radioactivity (annual) 30 mrem 0.3 mSv 250 2.5 29 mrem 0.29 mSv Radiation in the body (annual) Living near a nuclear power station (annual) 21 mrem 0.21 mSv fa -JL 10 mrem 0.1 mSv Chest X-ray (single procedure) <1 mrem <0.01 mSv ------- |