A survey of arsenic, mercury, cadmium, and lead residues in seafood (fish, crustaceans, and cephalopods) from the south‐eastern Mediterranean Sea
| Autor: | Dan Tchernov, Ran Berzak, Nadav Davidovich, Aviad Scheinin, Debra Ramon, Danny Morick, Malka Britzi, Peter Croot |
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| Rok vydání: | 2021 |
| Předmět: |
inorganic chemicals
Mullus barbatus Red mullet 030309 nutrition & dietetics Population chemistry.chemical_element Food Contamination Arsenic 03 medical and health sciences 0404 agricultural biotechnology Mediterranean sea Decapoda Mediterranean Sea Animals Humans media_common.cataloged_instance European union education media_common 0303 health sciences Cadmium education.field_of_study integumentary system biology Fishes Mercury 04 agricultural and veterinary sciences biology.organism_classification 040401 food science Mercury (element) Cephalopoda chemistry Environmental chemistry Environmental science Food Science |
| Zdroj: | Journal of Food Science. 86:1153-1161 |
| ISSN: | 1750-3841 0022-1147 |
| Popis: | Seafood is capable of bioaccumulating heavy metals (HM), making it a potentially major dietary source of HM for humans. Presently, little data exists on seafood from the eastern-most boundary of the Mediterranean Sea. This study aims to provide exposure insight of the Israeli population to HM through the consumption of locally caught seafood by assessing the levels of arsenic, mercury, cadmium, and lead in raw tissues of seafood. A wide survey of local fisheries was conducted providing 296 samples from 11 different species, including seven fish, two crustacean, and two cephalopod species. Total arsenic, cadmium, and lead were analyzed by graphite-furnace atomic absorption. Total mercury was measured by cold-vapor mercury analyzer. Arsenic speciation was performed by anion chromatography-inductively coupled plasma sector field mass spectrometry. Results suggested that the total arsenic concentrations were significantly higher in crustaceans and cephalopods than fish. Arsenic speciation revealed two samples that exceed 1 mg/kg of inorganic arsenic, whereas methylated arsenic was below the detection limit. Elevated mercury levels were detected in the commercial benthic species Mullus barbatus (red mullet), cadmium was detected in one-third of the samples, and lead detected in eight samples. Comparing the results to health guidelines, 99.4% of seafood tested in this study abide with acceptable levels of heavy metals in seafood, as defined by both Israeli and European Union guidelines. |
| Databáze: | OpenAIRE |
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