Distribution of 137Cs activities in clams, Tivela mactroidea collected along the northern coast of Venezuela and the island of Margarita

J. LaBrecque; J. Alfonso; P. Cordoves; D. Palacios

doi:10.1007/s10967-007-6844-5

Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 273: Issue 2

Distribution of ¹³⁷Cs activities in clams, Tivela mactroidea collected along the northern coast of Venezuela and the island of Margarita

Authors:

J. LaBrecque

J. LaBrecque Instituto Venezolano de Investigaciones Cientificas, Centro de Quimica, Apartado 21827A Caracas, Venezuela

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J. Alfonso

J. Alfonso Instituto Venezolano de Investigaciones Cientificas, Centro de Quimica, Apartado 21827A Caracas, Venezuela

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P. Cordoves

P. Cordoves Instituto Venezolano de Investigaciones Cientificas, Centro de Quimica, Apartado 21827A Caracas, Venezuela

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, and

D. Palacios

D. Palacios Universidad Simon Bolivar, Apartado 89000 Caracas 1080, Venezuela

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Pages:: 285–288

Online Publication Date:: 29 Jun 2007

Publication Date:: 01 Aug 2007

Article Category:: Research Article

DOI:: https://doi.org/10.1007/s10967-007-6844-5

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Abstract

Clam meats were obtained directly from the fishermen on the beaches in front of where the clams were collected at eight sites; seven along the northern coast of Venezuela and one on the northern coast of the island of Margarita (Venezuela). Marine sediments were also collected in the same corresponding areas as the clams. ¹³⁷Cs was determined both in clam meats and the marine sediments by high resolution gamma-ray spectrometry employing a hyperpure germanium detector. About 5 kg portions of clam meats were washed and dried in the laboratory, before 500 cm³ volumes were transferred and weighed in the measuring containers. Similarly, 500 cm³ volumes of marine sediments that were dried and ground to pass a 85 μm sieve were transferred to the measuring containers. The samples were counted for 150,000 seconds of real time. The ¹³⁷Cs activity of the clam meats ranged from <0.011 Bq·kg⁻¹ (our detection limit) to 0.36 Bq·kg⁻¹ (dried weigh). These values are all within the range of values considered for environmental fallout from the nuclear weapons tests. Finally, all the values for the corresponding marine sediments were below our detection limit of 0.1 Bq·kg⁻¹ of ¹³⁷Cs (dried weigh).

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)