Vertical distribution of /sup 90/Sr and /sup 137/Cs in bottom deposits of lakes and rivers

Journal Article · Wed Jan 01 04:00:00 EST 1975 · Sov. J. Ecol. (Engl. Transl.); (United States)

OSTI ID:7347602

Makhon'ko, K P; Bobovnikova, Ts I; Avramenko, A S; Dibtseva, A V; Volokitin, A A

Measurements were made of /sup 90/Sr and /sup 137/Cs concentrations in bottom deposits of rivers and lakes in the vicinity of Moscow. The following conclusions were made: /sup 137/Cs concentrations are highest at the surface of bottom deposits of stretches of rivers with a very weak flow owing to the predominance of sorption over desorption; desorption of /sup 137/Cs from the surface layer of bottom deposits predominates on fast-flowing stretches of rivers and isotope concentration in the surface layer is lower; and /sup 90/Sr is more easily washed out from the surface of bottom deposits than /sup 137/Cs which leads to an increase in the /sup 137/Cs//sup 90/Sr ratio. (HLW)

• OSTI ID: 7347602
• Journal Information: Sov. J. Ecol. (Engl. Transl.); (United States), Journal Name: Sov. J. Ecol. (Engl. Transl.); (United States) Vol. 6:3; ISSN SJECA
• Country of Publication: United States
• Language: English

Related Subjects

520300* -- Environment
Aquatic-- Radioactive Materials Monitoring & Transport-- (1989)
54 ENVIRONMENTAL SCIENCES
ALKALI METAL ISOTOPES
ALKALINE EARTH ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CESIUM 137
CESIUM ISOTOPES
DEPOSITS
ECOLOGICAL CONCENTRATION
ENVIRONMENTAL TRANSPORT
EVEN-EVEN NUCLEI
INTERMEDIATE MASS NUCLEI
ISOTOPES
LAKES
MASS TRANSFER
NUCLEI
ODD-EVEN NUCLEI
RADIOECOLOGICAL CONCENTRATION
RADIOISOTOPES
RADIONUCLIDE MIGRATION
RIVERS
SEDIMENTS
STREAMS
STRONTIUM 90
STRONTIUM ISOTOPES
SURFACE WATERS
YEARS LIVING RADIOISOTOPES