MODELING OF TEMPORAL AND VERTICAL CHANGES IN 137Cs CONCENTRATION IN LAKE ONUMA

被引：0

作者：

Akasaki, Kentaro ^{[1
]}

Semba, Taisei ^{[1
]}

Suetomi, Eiichi ^{[1
]}

Okada, Yukiko ^{[2
]}

Suzuki, Kyuma ^{[3
]}

Watanabe, Shun ^{[3
]}

Hatano, Yuko ^{[1
]}

机构：

[1] Univ Tsukuba, Grad Sch Syst & Informat Engn, Tsukuba, Ibaraki, Japan

[2] Tokyo City Univ, Atom Energy Res Lab, Kawasaki, Kanagawa, Japan

[3] Gunma Prefectural Fisheries Expt Stn, Maebashi, Gumma, Japan

来源：

RADIATION PROTECTION DOSIMETRY | 2022年 / 198卷 / 13-15期

关键词：

MT; AKAGI; RADIOCESIUM; DIFFUSION; DYNAMICS; WATER;

D O I：

10.1093/raddos/ncac138

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

According to the observed data of the activity concentration of Cs-137 in Lake Onuma on Mount. Akagi, located in Gunma Prefecture, the decrease of the activity concentration slowed down since 2 years after the accident of Fukushima Daiichi Nuclear Power Plant. In the present study, we applied the time fractional diffusion equation to reproduce long-term changes in the time series of the activity concentration. In addition, we also reproduced the vertical distribution of the activity concentration with the parameter values, estimated by the time series data. We found that the model fit the observed data well for both time series and vertical distribution.

引用

页码：1170 / 1174

页数：5

共 11 条

[1] [Anonymous], 2011, CHIBA U
[2] Modelling the long-term dynamics of radiocaesium in closed lakes
Bulgakov, AA
Konoplev, AV
Smith, JT
Hilton, J
Comans, RNJ
Laptev, GV
Christyuk, BF
[J]. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 2002, 61 (01) : 41 - 53
[3] MOBILIZATION OF RADIOCESIUM IN PORE WATER OF LAKE-SEDIMENTS
COMANS, RNJ
MIDDELBURG, JJ
ZONDERHUIS, J
WOITTIEZ, JRW
DELANGE, GJ
DAS, HA
VANDERWEIJDEN, CH
[J]. NATURE, 1989, 339 (6223) : 367 - 369
[4] Horne A.J., 1999, LIMNOLOGY
[5] LI YH, 1974, GEOCHIM COSMOCHIM AC, V38, P703
[6] ON SOME PROPERTIES OF THE MITTAG-LEFFLER FUNCTION Eα(-tα), COMPLETELY MONOTONE FOR t > 0 WITH 0 < α < 1
Mainardi, Francesco
[J]. DISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS-SERIES B, 2014, 19 (07): : 2267 - 2278
[7] Matsuzaki S.S., 2020, SCI ENV, V761
[8] Pollution - Chernobyl's legacy in food and water
Smith, JT
Comans, RNJ
Beresford, NA
Wright, SM
Howard, BJ
Camplin, WC
[J]. NATURE, 2000, 405 (6783) : 141 - 141
[9] Suetomi E, 2021, SCI REP-UK, V11, DOI 10.1038/s41598-021-99667-1
[10] Radiocesium dynamics in the aquatic ecosystem of Lake Onuma on Mt. Akagi following the Fukushima Dai-ichi Nuclear Power Plant accident
Suzuki, Kyuma
Watanabe, Shun
Yuasa, Yumi
Yamashita, Yasunori
Arai, Hajime
Tanaka, Hideki
Kuge, Toshihiro
Mori, Masanobu
Tsunoda, Kin-ichi
Nohara, Seiichi
Iwasaki, Yuichi
Minai, Yoshitaka
Okada, Yukiko
Nagao, Seiya
[J]. SCIENCE OF THE TOTAL ENVIRONMENT, 2018, 622 : 1153 - 1164

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