Concentrations of mercury, lead and cadmium in bivalves from the Portuguese coast

Helena Lourenço; Carmen Lima; Ana Oliveira; Susana Gonçalves; Claudia Afonso; Maria Fernanda Martins; Maria Leonor Nunes

Concentrations of mercury, lead and cadmium in bivalves from the Portuguese coast

In: Seafood research from fish to dish

Authors:

Helena Lourenço

Helena Lourenço INIAP-IPIMAR, Av. Brasília, 1449-006 Lisbon, Portugal

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Carmen Lima

Carmen Lima INIAP-IPIMAR, Av. Brasília, 1449-006 Lisbon, Portugal

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Ana Oliveira

Ana Oliveira INIAP-IPIMAR, Av. Brasília, 1449-006 Lisbon, Portugal

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Susana Gonçalves

Susana Gonçalves INIAP-IPIMAR, Av. Brasília, 1449-006 Lisbon, Portugal

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Claudia Afonso

Claudia Afonso INIAP-IPIMAR, Av. Brasília, 1449-006 Lisbon, Portugal

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Maria Fernanda Martins

Maria Fernanda Martins INIAP-IPIMAR, Av. Brasília, 1449-006 Lisbon, Portugal

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Maria Leonor Nunes

Maria Leonor Nunes INIAP-IPIMAR, Av. Brasília, 1449-006 Lisbon, Portugal

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Type:: Chapter

Pages:: 497–502

DOI:: https://doi.org/10.1163/9789086865819_053

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Abstract

The accumulation of heavy metals in bivalve tissues is due to their morphological and biological characteristics associated to the habitat. In Portugal, these species are important in terms of economic value and local consumption. The purpose of this work was to evaluate the levels of some heavy metals which can be toxic for humans at elevated concentrations in bivalves collected in 2004. Total mercury levels were lower than the maximum legal limit by EU (0.5 mg/kg wet weight). Regarding lead and cadmium levels, most samples did not exceeded the legal maximum limits (1.5 mg/kg wet weight and 1.0 mg/kg wet weight, respectively). As exceptions some furrow shell and Portuguese oyster samples from Tagus and Sado estuaries could be identified.

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Seafood research from fish to dish

Quality, safety and processing of wild and farmed seafood

E-Book ISBN:: 9789086865819

Publisher:: Wageningen Academic

Print Publication Date:: 01 Jan 2006

Subjects
- Life Sciences

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Concentrations of mercury, lead and cadmium in bivalves from the Portuguese coast

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Citation Info

Share link with colleague or librarian

Seafood research from fish to dish

Quality, safety and processing of wild and farmed seafood

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