500 days on the surface of Mars is 320 mSv
The average exposure during 6 months aboard the ISS is 80 mSv
A radiation worker's annual exposure limit is 50 mSv
One CT scan
of the abdomen
is 8 mSv
The average US person's total annual exposure
is 6.24 mSv
Annual background
radiation in the US
is 3.1 mSv
One whole-mouth dental x-ray
is 0.01 mSv
Tap arrows to see how this compares to other
exposure levels
662 squares represent the radiation a person would be exposed to after 360 days in space on the way to and from Mars
1 square represents 1 millisievert (mSv), a unit of radiation exposure
