iies + = 4n estimate of beta doses at the surface cof an imaginary sphere surrounding a fallout particle is given in Appendix FE and an estixate of beta doses froz a single particle required to produce recoguisable erytrem: is presented tn Appendix F. Calculations indicate that the apecific activity of some indivi- dual partieles found in fallout would be great enough to produce recegnisabie erythema if held in eontact with the skin for less tna ene day, yet the gauue dose rate reading at 4 inches may be quite small. (See Appendix @.) Additional information on desee from individual particles has recently been reported*. The particles found ir smc around Hanford consisted princi- pally of three raciolsctopes, Rule, Rudot anc ite daughter Ph106, the date and calculations in appendix H also strongly indicate that a single fallout particle could produce « reoognisable erytiame. Sentemination In the case of contanination of clothing, higher dose rates might be tolerated than these for exposed parte af tne bocy. This was exemplified in the natives where no beta burne were observed umier elothing of the most highly eomtaxinated perzonrel. (This does ast include such areas as under the waist line vhere material apperently sollected and was helinplace.) On the other hand very large increase: in comtarination shoul not be tole ersted since it 1s posalble for the clothing to be rearranged so as to bring the contaminated surface in contact witn tre akin. Parther, it ts set unlikely that one may rub his hands over is clothing and then through the hair where £¢ eould be helc im place for relativeiv long perteda of tine. Fe3306E. a status report. Sept. 16, 144%. prose aor e Ur: wat ee. he an