THORIUM ISOTOPES AS ANALOGS FOR PARTICLE-REACTIVE POLLUTANTS IN COASTAL MARINE ENVIRONMENTS Academic Article uri icon

abstract

  • Experiments using radioactive tracers in microcosms of 150 l and 13 m3 volumes, which are designed to mimic Narragansett Bay, indicate that Th isotopes are good analogues for studying the removal behavior of "particle-reactive" pollutants such as Am, Pb, Po, Hg and Cr(III) in coastal environments. The removal of Th isotopes and Fe has been found to be closely linked in microcosms and Narragansett Bay. In addition, the settling velocities of tracer microspheres in the experimental tanks were found to be faster in spring and summer than expected from Stokes' law and similar to those of 234Th-containing particles in Narragansett Bay [5]. It is concluded that aggregation of particles is important in accelerating the removal of surface-reactive elements during the warm season. 1980.

published proceedings

  • EARTH AND PLANETARY SCIENCE LETTERS

author list (cited authors)

  • SANTSCHI, P. H., ADLER, D., AMDURER, M., LI, Y. H., & BELL, J. J.

citation count

  • 82

complete list of authors

  • SANTSCHI, PH||ADLER, D||AMDURER, M||LI, YH||BELL, JJ

publication date

  • May 1980