Seasonal and spatial variations of 210Po and 210Pb activity concentrations in Mytilus galloprovincialis from Croatian coast of the Adriatic Sea

Martina Rožmarić; Matea Rogić; Ljudmila Benedik; Marko Štrok; Delko Barišić

doi:10.1016/j.chemosphere.2013.07.039

Seasonal and spatial variations of ²¹⁰Po and ²¹⁰Pb activity concentrations in Mytilus galloprovincialis from Croatian coast of the Adriatic Sea

Martina Rožmarić, Matea Rogić, Ljudmila Benedik, Marko Štrok, Delko Barišić

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

Results of 2years monitoring of ²¹⁰Po and ²¹⁰Pb activity concentrations in soft tissue of the species Mytilus galloprovincialis from Croatian part of the Adriatic coast are presented. The samples were collected at thirteen coastal stations (some of which are also a part of the Mediterranean Mussel Watch Project) in spring and autumn of 2010 and 2011. The collected mussels were ranging between 4cm and 6cm in shell length. After sample pre-treatment lead and polonium were radiochemically separated on Sr resin. ²¹⁰Po was determined by alpha-particle spectrometry and ²¹⁰Pb was determined, via ²¹⁰Bi, by a low-level gas proportional counter. The results of ²¹⁰Po activity concentrations were found to vary between (104±11) and (1421±81) Bqkg^-1 dry weight while ²¹⁰Pb activity concentrations were much lower and in range (8.2±5.3)-(94.1±29.8) Bqkg^-1 dry weight. Higher ²¹⁰Po and ²¹⁰Pb activity concentrations were determined in spring period. The inter-site differences seen in their activity concentrations can be due to natural background levels of sites. The ²¹⁰Po/²¹⁰Pb activity concentration ratios in all cases exceeded unity for all mussel samples and ranged between 4.0 and 47.9.

Original language	English
Pages (from-to)	2063-2068
Number of pages	6
Journal	Chemosphere
Volume	93
Issue number	9
DOIs	https://doi.org/10.1016/j.chemosphere.2013.07.039
State	Published - Nov 2013
Externally published	Yes

Bibliographical note

Funding Information:
This work was financially supported by Ministry of Science, Education and Sports of the Republic of Croatia (Project: Radionuclides and trace elements in environmental systems) and State Office for Radiological and Nuclear Safety, Croatia (Contract: Research and monitoring of ionising radiation in the environment – marine indicator organisms).

Funding

This work was financially supported by Ministry of Science, Education and Sports of the Republic of Croatia (Project: Radionuclides and trace elements in environmental systems) and State Office for Radiological and Nuclear Safety, Croatia (Contract: Research and monitoring of ionising radiation in the environment – marine indicator organisms).

Funders	Funder number
State Office for Radiological and Nuclear Safety, Croatia
Ministarstvo Obrazovanja, Znanosti i Sporta

Keywords

Adriatic Sea
Mytilus galloprovincialis

Access to Document

10.1016/j.chemosphere.2013.07.039

Cite this

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title = "Seasonal and spatial variations of 210Po and 210Pb activity concentrations in Mytilus galloprovincialis from Croatian coast of the Adriatic Sea",

abstract = "Results of 2years monitoring of 210Po and 210Pb activity concentrations in soft tissue of the species Mytilus galloprovincialis from Croatian part of the Adriatic coast are presented. The samples were collected at thirteen coastal stations (some of which are also a part of the Mediterranean Mussel Watch Project) in spring and autumn of 2010 and 2011. The collected mussels were ranging between 4cm and 6cm in shell length. After sample pre-treatment lead and polonium were radiochemically separated on Sr resin. 210Po was determined by alpha-particle spectrometry and 210Pb was determined, via 210Bi, by a low-level gas proportional counter. The results of 210Po activity concentrations were found to vary between (104±11) and (1421±81) Bqkg-1 dry weight while 210Pb activity concentrations were much lower and in range (8.2±5.3)-(94.1±29.8) Bqkg-1 dry weight. Higher 210Po and 210Pb activity concentrations were determined in spring period. The inter-site differences seen in their activity concentrations can be due to natural background levels of sites. The 210Po/210Pb activity concentration ratios in all cases exceeded unity for all mussel samples and ranged between 4.0 and 47.9.",

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note = "Funding Information: This work was financially supported by Ministry of Science, Education and Sports of the Republic of Croatia (Project: Radionuclides and trace elements in environmental systems) and State Office for Radiological and Nuclear Safety, Croatia (Contract: Research and monitoring of ionising radiation in the environment – marine indicator organisms).",

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AU - Benedik, Ljudmila

AU - Štrok, Marko

AU - Barišić, Delko

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N2 - Results of 2years monitoring of 210Po and 210Pb activity concentrations in soft tissue of the species Mytilus galloprovincialis from Croatian part of the Adriatic coast are presented. The samples were collected at thirteen coastal stations (some of which are also a part of the Mediterranean Mussel Watch Project) in spring and autumn of 2010 and 2011. The collected mussels were ranging between 4cm and 6cm in shell length. After sample pre-treatment lead and polonium were radiochemically separated on Sr resin. 210Po was determined by alpha-particle spectrometry and 210Pb was determined, via 210Bi, by a low-level gas proportional counter. The results of 210Po activity concentrations were found to vary between (104±11) and (1421±81) Bqkg-1 dry weight while 210Pb activity concentrations were much lower and in range (8.2±5.3)-(94.1±29.8) Bqkg-1 dry weight. Higher 210Po and 210Pb activity concentrations were determined in spring period. The inter-site differences seen in their activity concentrations can be due to natural background levels of sites. The 210Po/210Pb activity concentration ratios in all cases exceeded unity for all mussel samples and ranged between 4.0 and 47.9.

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