Yes, ingestion/exposure to contaminated material seems to be more of an issue than exposure to direct radiation. Exceptions being something like space travel, w

Yes, ingestion/exposure to contaminated material seems to be more of an issue than exposure to direct radiation. Exceptions being something like space travel, where background gamma is high. An interesting example: https://en.m.wikipedia.org/wiki/Fuel_fleas https://en.m.wikipedia.org/wiki/Fuel_fleas