Se 0018933 4.2 RECOMMENDATIONS It is recommended that similar sampling operations, both of the clouds and the fallout, be carried out if the opportunity is presented by future weapons tests. Attention might be directed principally toward land surface detonations, where the Hardtack data are relatively poor. Since the sampling techniques are well develaped, the operational costs for such a project would be small with the main expense in the chemical analyses. This could be reduced, if necessary, by restricting the radiochemistry to the long-lived nuclides. pia aAN BHRONO 93 43