Record Display for the EPA National Library Catalog


Main Title Accumulation of Cesium-137 and Strontium-90 in Ponderosa Pine and Monterey Pine Seedlings.
Author Entry, J. A. ; Rygiewicz, P. T. ; Emmingham, W. H. ;
CORP Author Corvallis Environmental Research Lab., OR. ;Oregon State Univ., Corvallis. Dept. of Forest Science. ;Auburn Univ., AL. Dept. of Agronomy and Soils.
Publisher c1993
Year Published 1993
Report Number EPA/600/J-94/093;
Stock Number PB94-146321
Additional Subjects Radioactive isotopes ; Pine trees ; Removal ; Plant growth ; Tests ; Exposure ; Cesium 137 ; Strontium 90 ; Accumulation ; Storage ; Concentration(Composition) ; Fallout ; Nuclear weapons ; Reprints ; Seedlings ; Reforestation
Library Call Number Additional Info Location Last
NTIS  PB94-146321 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 8p
Because Pinus ponderosa (Dougl.ex Laws) and P. radiata (D.Don) have exceptionally fast growth rates and their abscised needles are not readily dispersed by wind, these species may be valuable for removing radioisotopes from contaminated soils. P. ponderosa and P. radiata seedlings were tested for their ability to accumulate Cesium 137 and Strontium 90--characteristic radioisotopes of nuclear fallout--from contaminated soil. All seedlings were grown for 3 months in cu cm of sphagnum peat moss:perlite (1:1 V:V) in a growth chamber. In experiment 1, seedling accumulation of 137 CS and 90 Sr after 1 month of exposure was measured. In experiment 2, seedling accumulation of the radioisotopes during different-length exposures was measured. Experiment 3 measured seedling accumulation of CS 137 and SR 90 at different concentrations of the radioisotopes in the growth medium. Accumulation of CS 137 and SR 90 by both species increased with increasing concentration in the growth medium and correlated curvilinearly with radioisotope concentration in the growth medium. (Copyright (c) 1993, Environmental Quality.)