RADIOCESIUM IN THE SEDIMENTS OF OVRE-HEIMDALSVATN, A NORWEGIAN SUB-ALPINE LAKE

被引：14

作者：

HONGVE, D

BLAKAR, IA

BRITTAIN, JE

机构：

[1] National Institute of Public Health, N-0462 Oslo

[2] Department of Soil and Water Sciences, Agricultural University of Norway, N-1432 As

[3] Freshwater Ecology and Inland Fisheries Laboratory, University of Oslo, N-0562 Oslo

来源：

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY | 1995年 / 27卷 / 01期

关键词：

D O I：

10.1016/0265-931X(94)00014-N

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Lake sediment cores and samples of stream sediments from the catchment of Ovre Heimdalsvatn have been collected. The lake sediments exhibit apparently unsystematic spatial distribution of radiocaesium. This is ascribed to irregular bathygraphy. However, the radiocaesium concentration increased with increasing percentage of organic matter, water content, and with distance from the main inlet. There was no correlation with lake depth. Stream sediments were scarce because of torrential conditions but those present had activities in line with the lake sediments. Therefore they constitute a small potential for further supply of radiocaesium to the lake. Measurements of export from the catchment and retention in the lake show that the total radiocaesium activity in the sediments may remain unchanged or even increase during the years to come.

引用

页码：1 / 11

页数：11

共 10 条

[1]

Blakar, Hongve, Njastad, Chernobyl caesium in the sediments of Lake Høysjøen, central Norway, J. Environ. Radioactivity, 17, pp. 49-58, (1992)

[2]

Brittain, Bjornstad, Salbu, Oughton, Winter transport of Chernobyl radionuclides from a montane catchment to an icecovered lake, Analyst, 117, pp. 515-519, (1992)

[3]

Broberg, The distribution and characterization of <sup>137</sup>Cs in lake sediments, Nordic Radioecology, (1994)

[4]

Kansanen, Jaakola, Kulmala, Suutarinen, Sedimentation and distribution of gamma-emitting radionuclides in bottom sediments of southern Lake Päijänne, Finland, after the Chernobyl accident, Hydrobiologia, 222, pp. 121-140, (1991)

[5]

Kloster, Hongve, The post-glacial sediments of Øvre Heimdalsvatn, Holarctic Ecology, 1, pp. 124-127, (1978)

[6]

Larsson, Brittain, Lien, Lillehammer, Tangen, The lake ecosystem of Øvre Heimdalsvatn, Holarctic Ecology, 1, pp. 304-320, (1978)

[7]

Riise, Bjornstad, Lien, Oughton, Salbu, A study on radionuclide association with soil components using a sequential extraction procedure, J. Radioanal. Nucl. Chem. Art., 142, pp. 531-538, (1990)

[8]

Salbu, Bjornstad, Brittain, Fractionation of caesium isotopes and <sup>90</sup>Sr in snowmelt run-off and lake waters from a contaminated Norwegian mountain catchment, J. Radioanal. Nucl. Chem. Art., 156, pp. 7-20, (1992)

[9]

Santschi, Bollhalder, Zingg, Luck, Farrenkothen, The self-capacity of surface waters after Chernobyl, 1986–1988, Environ. Sci. Technol., 24, pp. 519-527, (1990)

[10]

Vik, The lake Øvre Heimdalsvatn—a subalpine freshwater ecosystem: Introduction, Holarctic Ecology, 1, pp. 84-88, (1978)

← 1 →