SPECIATION OF CESIUM ISOTOPES IN RIVER WATER: A CASE STUDY IN THE UKEDO RIVER

被引：0
|
作者：
Tazoe, Hirofumi [1 ]
Tachizaki, Ryo [2 ]
Tomisaka, Yuto [2 ]
Kuwata, Haruka [1 ,3 ]
Akata, Naofumi [1 ]
机构：
[1] Hirosaki Univ, Inst Radiat Emergency Med, Hirosaki, Aomori, Japan
[2] Hirosaki Univ, Sch Hlth Sci, Hirosaki, Aomori, Japan
[3] Hirosaki Univ, Grad Sch Hlth Sci, Hirosaki, Aomori, Japan
来源：
RADIATION PROTECTION DOSIMETRY | 2022年 / 198卷 / 13-15期
关键词：
RADIOCESIUM; FISH; RADIOACTIVITY;
D O I：
10.1093/rpd/ncac056
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Cs-137 in river systems can be taken up by aquatic animals. In this paper, total Cs-137 concentration in the Ukedo River system and Cs-137 presence in dissolved, acid-soluble and -insoluble fractions in river water samples were determined. Total Cs-137 concentration had the maximum value of 2.08 Bq kg(-1) below the Ogaki Dam in May 2012. In the base flow condition, > 87% of Cs-137 existed in the dissolved state, and the acid-soluble state and the insoluble state were <13% and the undetectable level, respectively. After the heavy rain event, the particulate fraction (acid-soluble state + insoluble state) was elevated to 65%, which corresponds to twice as much as that in the base flow condition. Particulate Cs-137, especially the acid-soluble Cs, can play a role when taken into the food chain in aquatic ecosystems.
引用
收藏
页码：1077 / 1083
页数：7
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