 The resulting whole-body dose may have been hazardous to the salesmen, who were chronically exposed, and to children, who are about twice as radiosensitive as adults.Monitoring of American salespersons found dose rates at pelvis height of up to 95 mr/week, with an average of 7.1 mr/week (up to ~50 mSv/a, avg ~3.7 mSv/an effective dose).A 2007 paper suggested that even higher doses of 0.5 Sv/a were plausible.