7Be and 210Pb total deposition fluxes at New Haven, Connecticut and at Bermuda.

The 210Pb flux has remained virtually constant at New Haven from 1973 to 1978, the flux in the 1977-1978 period being 1.2 dpm/cm2/y. The 210Pb flux at Bermuda is 0.69 dpm/cm2/y. This lower flux than expected from model calculations is due to the establishment of a blocking high pressure cell during the summer which deflects continental air. The 7Be fluxes at New Haven and Bermuda are 22.7 and 17.1 dpm/cm2/y, values consistent with western North Atlantic oceanic standing crop measurements, but higher than some other estimates

Radium on soil mineral surfaces: Its mobility under environmental conditions and its role in radon emanation. Final report

The ultimate source of {sup 222}Rn to the atmosphere is, of course, {sup 226}Ra. Tracking the mobility of radium therefore is part of the story of radon flux assessment. The study of radium mobility and radon flux measurements has involved virtually all the reservoirs at the Earth`s surface. These include soils, groundwaters, coastal waters and the atmosphere. The attempt to understand the mobility of radium involved the study of almost all the radium isotopes ({sup 226}Ra, {sup 228}Ra, {sup 224}Ra) and the parent and daughters of these isotopes

(The fate of nuclides in natural water systems)

Our research at Yale on the fate of nuclides in natural water systems has three components to it: the study of the atmospheric precipitation of radionuclides and other chemical species; the study of the behavior of natural radionuclides in groundwater and hydrothermal systems; and understanding the controls on the distribution of radionuclides and stable nuclides in the marine realm. In this section a review of our progress in each of these areas is presented