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Bibliographic record number: 614911

Journal

Authors: Petrinec, Branko; Franić, Zdenko
Title: 137Cs Inventory in South Adriatic
Source: IRPA13 Abstracts-13th International Congress of the International Radiation Protection Association 13-18 May 2012Glasgow, Škotska :
Meeting: 13th International Congress of the International Radiation Protection Association 13-18 May 2012: Living with Radiation - Engaging with Society
Location and date: Glasgow, Škotska, 13-15.05.2012.
Keywords: 137Cs; South Adriatic
Abstract:
In this paper are presented results of investigation of 137Cs activity concentrations and sediments in South Adriatic. Inventory of 137Cs in sediments and sea water is estimated. Sediment samples were collected during radioecological cruise organized by International Atomic Energy Agency in year 2007, while sea water samples were collected on yearly basis as a part of extended monitoring programme of the radioactive contamination of Croatian environment. Measurements were performed in the Radiation Protection Unit of the Institute for Medical Research and Occupational Health. In South Adriatic, i.e. in the area between Palagruža sill in north and straight of Otranto in south, sediment samples were taken on three locations. Correlation between measured radiological and geochemical parameters has been found to be quite significant. Mean value for 137Cs activity concentration in sediments in south Adriatic was calculated to be (3.87 ± 0.66) E+4 Bqm-2. Therefore, total inventory of 137Cs in sea sediments in south Adriatic, which has area of about 60, 000 km2, has been estimated to be 2.32 E+15 Bq. Total inventory of 137Cs in sea water in south Adriatic, which has volume of about 28172 km3, has been estimated to be (8.51 ± 0.24) E+13 Bq. The highest value of 137Cs activity concentration has been found on sampling location in Albania (1.24 E+5 Bqm-2) while, for comparison, 137Cs activity concentration on location Jabuka in middle Adriatic was found to be 5.79 E+4 Bqm-2. It can be argued that sampling locations in Albania and Jabuka are influenced by river runoff, i.e. by the rivers Bojana (Buna) in Albania and Po in Italy. Therefore, caesium sediments in the South Adriatic Pit could be considered to originate by fallout. However, more results from more sampling sites are needed for more reliable estimates.
Type of meeting: Predavanje
Type of presentation in a journal: Abstract
Type of peer-review: No peer-review
Project / theme: 022-0222882-2823, 022-0222882-2335
Original language: ENG
Category: Ostalo
Research fields:
Physics
Contrib. to CROSBI by: petrinec@imi.hr (petrinec@imi.hr), 24. Sij. 2013. u 11:41 sati



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