rl varying thickness of aluminium absorbers. The "shallow doses" po 7" /4 so calculated for Enjebi (Janet) Island are approximately 1.] rem in 30 y and for the southern islands the dose is 0.0l/rem in 30 y. This "shallow dose" is received primarily by the surface layers of skin (1 cm deep); deep doses from the external beta to organs such as gonads, bone and basal cells in the skin are less than 1] mrem in 30 y. The shallow dose contribution from the beta emitters cannot be summed with the bone and wholebody doses presented in this paper; if surface skin doses were to be considered independently then the "shallow dose" from the beta emitters should be included. Because the beta particles have a short and defined range any absorbing materials present, such as gravel buildings or clothing, will greatly reduce the externel dose from beta emitters. Inhalation Calculations Respirable 293+240p. ang 24lan are calculated using data developed in resuspension experiments conéucted at Enewetak Atoll in February 1977 and Bikini Atoli in May 1978. A brief description of the methodology is given here but more detail and discussion can be found in "a paper currently in press.° The study conducted on Bikini Island in May 1978 provided a more complete set of data, following our preliminary studies on Enjebi (Janet) Island of Enewetak Atoll in February 1977. were conducted on Eneu Isiand of Bikini Atoll.) utilized extensive soil (Subsequent studies The Bikini Island study sampling and in situ ganma spectroscopy to determine isotope levels in soil and vegetation, various air sampling I011b491 oto i4