TABLE 2 Island Total Activity -— ---- d/m/liter % Above Range Average Srread Pool Utirlk 2200-8),00 1,830 2230 7600 Lo Likiep 2760-9800 6000 2820 9200 55 Rongelap 1160-300 2030 773 none Control L,000~1)];00 4250 200 Individual Control 3120 Expected 2600-3500* Pooled Control # Lange - Handbook of Chemistry Assuming that all the natural radioactivity in urine is derived from K-40, one would expect 2600-3500 d/m/2h hour sample.