Authors:
P. Bode Delft University of Technology Interfaculty Reactor Institute Mekelweg 15 2629 JB Delft The Netherlands

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J. De Goeij Delft University of Technology Interfaculty Reactor Institute Mekelweg 15 2629 JB Delft The Netherlands

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P. Van Aller Delft University of Technology Interfaculty Reactor Institute Mekelweg 15 2629 JB Delft The Netherlands

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Abstract  

Phosphogypsum discharges by phosphate-ore processing industries pollute sediments of the Rotterdam harbour area with226Ra. Direct measurement of this radionuclide in sediments does not provide a reliable indication of the elevation of the levels, since226Ra levels in sediments depend on the particle size. To eliminate the size effect, the226Ra/Ba ratio in sediments was tested as a possible indicator for the226Ra in the discharges. The results indicate almost a doubling of the226Ra levels in sediment samples due to phosphogypsum discharges. The contribution of phosphogypsum to the sediment mass was calculated in the order of a few percent equivalent.

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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)