Radioactivity of plutonium isotopes, 137Cs and their ratio in sediment, seawater and biota from the east coast of Peninsular Malaysia

This study with sampling expeditions of marine sediment, seawater and biota were performed at 30 stations within Malaysian Exclusive Economic Zone (EEZ). A total of >400 samples were collected to determine the activity concentration of anthropogenic radionuclides ( 239+240 Pu, 137 Cs) and their a...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2011-09, Vol.289 (3), p.819-833
Main Authors: Yii, Mei-Wo, Wan Mahmood, Zal U’yun
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Drying
Economics
Hadrons
Heavy Ions
Inorganic Chemistry
Marine
Nuclear Chemistry
Nuclear Physics
Physical Chemistry
Radioactivity
Sampling
Sea water
Sediments
Stations
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Summary:This study with sampling expeditions of marine sediment, seawater and biota were performed at 30 stations within Malaysian Exclusive Economic Zone (EEZ). A total of >400 samples were collected to determine the activity concentration of anthropogenic radionuclides ( 239+240 Pu, 137 Cs) and their activity ratio ( 239+240 Pu/ 137 Cs) in sediments, seawater and biota. The purpose of this study was to determine the concentration levels for these radionuclides and to evaluate any occurrence of radioactive contamination. Sediment cores were obtained using multicorer device, while water samples via co-precipitation techniques and biota was purchased from local fishermen. The activity concentrations of 239+240 Pu in sediment, seawater and biota were ranged 0.21–0.45 Bq/kg dry wt., 2.33–7.95 mBq/m 3 and
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-011-1149-0