Relative Radiation Doses – XKCD

Here’s a chart that shows the rel­at­ive doses of radi­ation and the levels of extern­al dose that is fatal. Thanks to XKCD for this great illustration!

XKCD's Chart showing relative radiation doses

Author: Doug Nix

+DougNix is Managing Director and Principal Consultant at Compliance InSight Consulting, Inc. ( in Kitchener, Ontario, and is Lead Author and Managing Editor of the Machinery Safety 101 blog. Doug's work includes teaching machinery risk assessment techniques privately and through Conestoga College Institute of Technology and Advanced Learning in Kitchener, Ontario, as well as providing technical services and training programs to clients related to risk assessment, industrial machinery safety, safety-related control system integration and reliability, laser safety and regulatory conformity. Follow me on

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