Measurement of background radioactivity in surface soil of Indian Sundarban

被引：18

作者：

Chaudhuri, Punarbasu ^{[1
]}

Naskar, Nabanita ^{[1
,2
]}

Lahiri, Susanta ^{[2
]}

机构：

[1] Univ Calcutta, Dept Environm Sci, 35 Ballygunge Circular Rd, Kolkata 700019, India

[2] Saha Inst Nucl Phys, 1-AF, Kolkata 700064, India

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2017年 / 311卷 / 03期

关键词：

NORM; Anthropogenic radionuclide; Indian Sundarban; Surface soil; Gamma spectrometry; BIODIVERSITY; CONSERVATION;

D O I：

10.1007/s10967-016-5158-x

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

This is the first attempt to generate baseline data on the level of Naturally Occurring Radioactive Materials, (NORMs) U-238, Th-232 and anthropogenic radionuclide, Cs-137 in surface soil of Indian Sundarban. The activities of U-238 and Th-232 vary from 39.9 +/- 2.4 to 57.9 +/- 2.5 Bq kg(-1) and 47.3 +/- 2.4 to 64.8 +/- 3.1 Bq kg(-1) with mean of 48.7 +/- 2.8 Bq kg(-1) and 58.3 +/- 3.3 Bq kg(-1) respectively. The corresponding median values are 46.7 and 59.9 Bq kg(-1). The close proximity of mean and median values indicates normal distribution of U-238 and Th-232. In most of the samples, anthropogenic Cs-137 activity has been found below detection limit (BDL).

引用

页码：1947 / 1952

页数：6

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