Determination of137Cs activities in surface sediments and derived sediment accumulation rates in Thessaloniki Gulf, Greece

Tsabaris, C; Kapsimalis, V; Eleftheriou, G; Laubenstein, M; Kaberi, H; Plastino, W

dc.contributor.author	Tsabaris, C	en
dc.contributor.author	Kapsimalis, V	en
dc.contributor.author	Eleftheriou, G	en
dc.contributor.author	Laubenstein, M	en
dc.contributor.author	Kaberi, H	en
dc.contributor.author	Plastino, W	en
dc.date.accessioned	2014-03-01T02:08:40Z
dc.date.available	2014-03-01T02:08:40Z
dc.date.issued	2012	en
dc.identifier.issn	18666280	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29692
dc.subject	137Cs	en
dc.subject	210Pb	en
dc.subject	Northwestern Aegean Sea	en
dc.subject	Sedimentation rate	en
dc.subject	Thessaloniki Gulf	en
dc.title	Determination of137Cs activities in surface sediments and derived sediment accumulation rates in Thessaloniki Gulf, Greece	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s12665-012-1530-5	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s12665-012-1530-5	en
heal.publicationDate	2012	en
heal.abstract	Surficial and core samples collected from the eastern Thessaloniki Gulf, located in the NW Aegean Sea, were analyzed for their sedimentation rate and inventories of137Cs and210Pb. The study of the spatial radionuclide dispersion in the specific region is essential for the assessment of marine pollution levels. The sedimentation rates were calculated from the vertical distribution of137Cs and excess210Pb in the sediment cores. The spatial distribution of137Cs was studied with respect to sediment characteristics such as the grain size of the sample and the organic carbon content. The activity concentrations were measured by means of gamma ray spectrometry using HPGe detector for137Cs and gross alpha counting using alpha counter for210Pb. The average sedimentation rate along the sediment cores is characterized by a consistent pattern and varies from 0.18 ± 0.02 to 0.22 ± 0.03 cm year-1. The137Cs inventories varied from 205 ± 15 to 602 ± 39 Bq m-2, while the210Pb inventories of the studied cores exhibited average value of 140 ± 9 Bq m-2. Elevated137Cs activities were observed compared to certain Mediterranean marine areas; however, they were lower than the reported values in the Black Sea. © 2012 Springer-Verlag.	en
heal.journalName	Environmental Earth Sciences	en
dc.identifier.doi	10.1007/s12665-012-1530-5	en
dc.identifier.volume	67	en
dc.identifier.issue	3	en
dc.identifier.spage	833	en
dc.identifier.epage	843	en