Assessment of the caesium-137 flux adsorbed to suspended sediment in a reservoir in the contaminated Fukushima region in Japan

被引：28

作者：

Mouri, Goro ^{[1
]}

Golosov, Valentin ^{[2
,3
]}

Shiiba, Michiharu ^{[4
]}

Hori, Tomoharu ^{[5
]}

机构：

[1] Univ Tokyo, IIS, Meguro Ku, Tokyo 1538505, Japan

[2] Moscow MV Lomonosov State Univ, Fac Geog, Moscow 119991, Russia

[3] MSU, Moscow, Russia

[4] Kyoto Univ, Dept Urban & Environm Engn, Sakyo Ku, Kyoto 6068501, Japan

[5] Kyoto Univ, Disaster Prevent Res Inst, Uji, Kyoto 6110011, Japan

来源：

ENVIRONMENTAL POLLUTION | 2014年 / 187卷

关键词：

Caesium-137; Fukushima accident; Kusaki Dam basin; Numerical hydrodynamic model; Reservoir sedimentation; Suspended sediment; URBAN-RURAL CATCHMENT; RADIOACTIVE FALLOUT; AGGREGATE STABILITY; CHERNOBYL FALLOUT; EROSION PATTERNS; MINERAL MATTER; DYNAMIC-MODEL; SOIL-EROSION; LAND-COVER; TRANSPORT;

D O I：

10.1016/j.envpol.2013.12.018

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

We estimated the flux of caesium-137 adsorbed to suspended sediment in the Kusaki Dam reservoir in the Fukushima region of eastern Japan, which was contaminated by the Fukushima Nuclear Power Plant accident. The amount and rate of reservoir sedimentation and the caesium-137 concentration were validated based on the mixed-particle distribution and a sediment transport equation. The caesium-137 and sediment flux data suggested that wash load, suspended load sediment, and caesium-137 were deposited and the discharge and transport processes generated acute pollution, especially during extreme rainfall-runoff events. Additionally, we qualitatively assessed future changes in caesium-137 and sediment fluxes in the reservoir. The higher deposition and discharge at the start of the projection compared to the 2090s are most likely explained by the radioactive decay of caesium-137 and the effects of reservoir sedimentation. Predictions of the impacts of future climate on sediment and caesium-137 fluxes are crucial for environmental planning and management. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：31 / 41

页数：11

共 8 条

[1] Using caesium-137 measurements to establish a sediment budget for the catchment of a small reservoir in southern Italy
Porto, Paolo
Walling, Desmond E.
la Spada, Carmelo
[J]. CONSIDERING HYDROLOGICAL CHANGE IN RESERVOIR PLANNING AND MANAGEMENT, 2013, 362 : 125 - 133
[2] Combining caesium-137 measurements and suspended sediment load data to investigate the sediment response of a small catchment in southern Italy
Porto, Paolo
Walling, Desmond E.
La Spada, Carmelo
Mallimo, Nicola
[J]. SEDIMENT DYNAMICS FROM THE SUMMIT TO THE SEA, 2014, 367 : 220 - 227
[3] Assessment of sediment and erosion rates by using the caesium-137 technique in a Chinese polygonal karst depression
Xiaoyong Bai
[J]. Environmental Earth Sciences, 2011, 64 : 2151 - 2158
[4] Assessment of sediment and erosion rates by using the caesium-137 technique in a Chinese polygonal karst depression
Bai, Xiaoyong
[J]. ENVIRONMENTAL EARTH SCIENCES, 2011, 64 (08) : 2151 - 2158
[5] The numerical simulation of caesium-137 transportation in ocean and the assessment of its radioactive impacts after Fukushima NPP release
Guan Yue
Shen ShiFei
Huang Hong
[J]. SCIENCE CHINA-EARTH SCIENCES, 2015, 58 (06) : 996 - 1004
[6] The numerical simulation of caesium-137 transportation in oceanand the assessment of its radioactive impacts after Fukushima NPP release
GUAN Yue
SHEN ShiFei
HUANG Hong
[J]. Science China Earth Sciences, 2015, 58 (06) : 996 - 1004
[7] The numerical simulation of caesium-137 transportation in ocean and the assessment of its radioactive impacts after Fukushima NPP release
Yue Guan
ShiFei Shen
Hong Huang
[J]. Science China Earth Sciences, 2015, 58 : 996 - 1004
[8] Use of reservoir deposits and caesium-137 measurements to investigate the erosional response of a small drainage basin in the rolling loess plateau region of China
Zhang, X
Walling, DE
Quine, TA
Wen, A
[J]. LAND DEGRADATION & DEVELOPMENT, 1997, 8 (01) : 1 - 16

← 1 →