If I am remembering correctly, the concern with ingestion of I-131 is that it concentrates in the thyroid and the thyroid can receive significant damage by prim

If I am remembering correctly, the concern with ingestion of I-131 is that it concentrates in the thyroid and the thyroid can receive significant damage by primarily the beta radiation. The gamma radiation emitted in the decay will likely cause minimal damage as much of it will pass through the body without interacting with the soft body tissue. In the following quote the article seems to be discounting the airborne/water contamination by comparing the whole body dose (gamma radiation), which really shouldn't be the main concern. " If a person were to drink a typical amount of water per day containing the EPA limit of I-131, then in one year he or she would receive a whole body dose of < 0.04 mSv (4 mrem). This dose should be compared to the US average annual radiation dose of 6.2 mSv (620 mrem)." Seems misleading or improperly reported.