Investigation of Hg Content by a Rapid Analytical Technique in Mediterranean Pelagic Fishes

Bella, Giuseppa Di; Tardugno, Roberta; Cicero, Nicola

doi:10.20944/preprints201807.0550.v1

2018

DOI: 10.20944/preprints201807.0550.v1

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Investigation of Hg Content by a Rapid Analytical Technique in Mediterranean Pelagic Fishes

Giuseppa Di Bella¹,

Roberta Tardugno²,

Nicola Cicero³

Abstract: Mercury (Hg) fish and seafood contamination is a global concern and needs worldwide sea investigations in order to protect consumers. The aim of this study was to investigate the Hg concentration by means of a rapid and simple analytical technique with direct Mercury Analyzer (DMA-80) in pelagic fish species, Tetrapturus belone (spearfish), Thunnus thynnus (tuna) and Xiphias gladius (swordfish) caught in the Mediterranean Sea. Hg contents were evaluated also in Salmo salar (salmon) as pelagic fish not belongin… Show more

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Cited by 2 publications

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Mercury Detection in Benthic and Pelagic Fish Collected from Western Sicily (Southern Italy)

Cammilleri

Galluzzo

Fazio

et al. 2019

Animals

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Simple SummaryIn highly polluted water, fish can accumulate Hg at concentrations that cause risk to human health. This has occurred in Sicily (Southern Italy), where there is activity from the petrochemical pole. In this paper, we present concentrations of mercury in 14 fish species collected from western Sicilian coasts in 2013. A significant difference was found between fish species examined but not between pelagic and benthic fish. Four out of 130 analyzed samples showed mercury concentrations over the European limits.AbstractIn highly polluted water, fish can accumulate mercury up to a concentration of 10 mgKg−1. This has occurred on the eastern coasts of Sicily (Southern Italy), probably due to the intense industrial activity of this area. However, little is known about Hg accumulation in fish of the western Sicilian coasts. In this work, we examined the Hg accumulation of 108 fish samples belonging to 14 species collected from western Sicilian coasts using a direct mercury analyzer. The samples showed a mean mercury concentration of 0.165 ± 0.22 mg kg−1 with a maximum in Lepidopus caudatus (1.72 mgKg−1), exceeding the limits provided by EC Reg. 1881/2006. The lowest Hg levels were found in Sparus aurata samples (0.001 mgKg−1). A significant difference was found between the fish species examined (p < 0.05). The comparison between benthic and pelagic species did not show statistical differences (p < 0.05). Fish food constitutes the main route of Hg uptake for humans. Only four of the 130 samples examined reached a mercury concentration over the European limits. The comparative analysis of Hg pollution for benthic and pelagic species did not confirm a different trend in metal contamination.

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Mercury Detection in Benthic and Pelagic Fish Collected from Western Sicily (Southern Italy)

Cammilleri

Galluzzo

Fazio

et al. 2019

Animals

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Hg Content in EU and Non-EU Processed Meat and Fish Foods

et al. 2023

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Mercury is one of the most dangerous toxic elements. Fresh food is the primary source of Hg exposure for humans. However, since processed foods are also a fundamental part of the food system, continuous monitoring of this contaminant in processed products is necessary to safeguard consumer health. The purpose of this study was to determine the Hg content using a direct mercury analyzer (DMA-80) in different processed food products (beef, pork, poultry, shellfish, and fish species) of EU and non-EU origin purchased in supermarkets and ethnic food shops in Messina (Italy). The results obtained were variable and correlated with the different types of food matrix. Low mercury levels were obtained for beef, pork, and poultry products, ranging from <LOQ for most samples to 3.727 µg/Kg. Higher concentrations were, however, obtained for fish species (9.249–290.211 µg/Kg). The mercury content was below the maximum levels specified in Regulation No 1881/2006 as amended. Percentage of Tolerable Weekly Intake (TWI) values of total Hg were evaluated in accordance with the European Food Safety Authority (EFSA). The results showed that some of the pelagic species of the genus Thunnus thynnus exceeded the TWI values.

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Investigation of Hg Content by a Rapid Analytical Technique in Mediterranean Pelagic Fishes

Cited by 2 publications

References 10 publications

Mercury Detection in Benthic and Pelagic Fish Collected from Western Sicily (Southern Italy)

Mercury Detection in Benthic and Pelagic Fish Collected from Western Sicily (Southern Italy)

Hg Content in EU and Non-EU Processed Meat and Fish Foods

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