NEPTUNIUM IN INTERTIDAL COASTAL AND ESTUARINE SEDIMENTS IN THE IRISH SEA

被引：16

作者：

ASSINDER, DJ

YAMAMOTO, M

KIM, CK

SEKI, R

TAKAKU, Y

YAMAUCHI, Y

KOMURA, K

UENO, K

BOURNE, GS

机构：

[1] Low Level Radioactivity Laboratory, Kanazawa University, Tatsunokuchi, Ishikawa

[2] Department of Chemistry, University of Tsukuba, Tsukuba, Ibaraki

[3] Marubun Co., Tokyo, 103, 8-1 Odenma-cho, Nihonbashi

来源：

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY | 1991年 / 14卷 / 02期

关键词：

D O I：

10.1016/0265-931X(91)90073-O

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A survey has been carried out of Np-237 activities in sediments of the Irish Sea. Two independent methods of analysis were used (ICP-MS and alpha-spectrometry) to enable the intercomparison of the results produced. The Np-237 content of the samples ranged from 0.01-4.5 Bq/kg for all areas apart from the Ribble Estuary. In the Ribble, a source of Np-237 other than Sellafield has been found which supports Np-237 activities in sediments up to 13.3 Bq/kg. This anomaly is verified by comparing Np-237 with the Pu-239, Pu-240 content of the sediments. These are believed to be the highest environmental Np-237 values yet recorded.

引用

页码：135 / 145

页数：11

共 17 条

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