Toxic elements and speciation in seafood samples from different contaminated sites in Europe

Maulvault, Ana Luísa; Anacleto, Patrícia; Barbosa, Vera; Sloth, Jens Jørgen; Rasmussen, Rie Romme; Tediosi, Alice; Fernández-Tejedor, Margarita; Heuvel, F. H. M. Van Den; Kotterman, M.J.J.; Marques, António

doi:10.1016/j.envres.2015.09.016

Cited by 74 publications

(55 citation statements)

References 64 publications

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“…This association mirrors previous findings which reported, in the same geographical locations, rabbitfish/ spinefoots to have significant Hg concentrations (Obeid et al 2011). Previous Mediterranean studies have identified other edible species, such as the annular seabream (D. annularis) and the European flounder (P. flesus) as contributors to Hg health risk (Maulvault et al 2015;MezghaniChaari et al 2011;Spada et al 2012). In addition, studies on trace elements contamination did not identify a risk contributory role for Mediterranean tuna consumption (Di Bella et al 2015), which is supported by our findings in this study.…”

Section: Speciessupporting

confidence: 90%

Mercury health risk assessment among a young adult Lebanese population

Obeid

Fares

Farhat

et al. 2017

Environ Sci Pollut Res

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Mercury (Hg) exposure represents a significant public health concern at a global level. This study aims at assessing Hg exposure and risk among Lebanese young adults based on Hg biomonitoring and seafood intake. A group of 166 young adults were administered a questionnaire to assess Hg exposure and were asked to provide a hair sample. Risk assessment was performed: (1) using the US Environmental Protection Agency Hazard Quotient (HQ) model based on fish intake and previously studied local fish Hg concentrations, and (2) by determining the total hair Hg concentration (THHg) using continuous flow-chemical vapor generation atomic absorption spectrometry. Differences in THHg across demographic and exposure subgroups were tested using t test or ANOVA. Correlations between THHg concentrations, fish consumption, and HQ were determined by computing Pearson's r. Higher THHg correlated with higher consumption of Mediterranean rabbitfish/spinefoots (r = 0.27; p = 0.001) and geographical location (p < 0.001) in the bivariate analysis, and remained significant in the adjusted multivariable linear regression model (geographical location: ß = 0.255, 95%CI 0.121-0.388; rabbitfish/spinefoots consumption: ß = 0.016, 95%CI 0.004-0.027). No significant correlations were found between HQ and THHg. In conclusion, this is the first study examining hair Hg levels and fish consumption in a young adult Lebanese population. Our findings constitute valuable baseline data for a local fish advisory and Hg monitoring.

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Section: Speciessupporting

confidence: 90%

Mercury health risk assessment among a young adult Lebanese population

Obeid

Fares

Farhat

et al. 2017

Environ Sci Pollut Res

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“…from France (Garcia-Salgado et al, 2012a). Significant proportions of iAs (49 %) were also reported in L. digitata from Norway, whereas samples of the brown algae S. latissimi from the same site were not elevated in iAs (Maulvault et al, 2015). Studies of L. digitata in other regions have reported only minor components of iAs (Castlehouse et al, 2003).…”

Section: Resultsmentioning

confidence: 91%

Concentrations and speciation of arsenic in New England seaweed species harvested for food and agriculture

Taylor

Jackson

2016

Chemosphere

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A survey of arsenic (As) concentrations and speciation was conducted on 10 species of seaweed from commercial harvesters and from collection at two sites in New England. Concentrations of As ranged from 4–106 mg/kg, mostly in the form of arsenosugars, with the distribution of arsenosugar analogs varying between taxa. In brown algae, As levels were correlated with phosphate concentrations, and arsenosugar speciation reflected differences in sulfur and phosphate concentrations between taxa. Several samples of the brown algae species Laminaria digitata contained significant levels of inorganic As (2.8–20 mg/kg), the most toxic form of As. A weak acid extraction with microwave heating was compared with a weaker methanol: water extraction method, and found to give slightly higher extraction efficiency with comparable relative concentrations of inorganic As, supporting the use of this faster and simpler extraction method for monitoring. Seaweed is a niche dietary item in the U.S. but its popularity is increasing; it is also used in agriculture and livestock farming which provide potential indirect routes for human exposure. The presence of occasional high concentrations of iAs, as well as the lack of toxicity studies on organic As species, suggest that monitoring of these high As foods is warranted.

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“…Results for total Hg were 0.002 and 0.003 mg/kg dw, respectively. Methylmercury concentrations for both seaweeds were <LOD (0.01 mg/kg; Maulvault et al., ).…”

Section: Resultsmentioning

confidence: 95%

Food safety hazards in the European seaweed chain

Banach

Hil

Fels‐Klerx

2020

Comp Rev Food Sci Food Safe

126

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Seaweed is a source of protein that can help overcome the anticipated challenges of a growing world population and the current challenges for finding alternatives for animal proteins in the Western diet. Thus far, data on the safety of seaweed for feed and food purposes in the Western world are scattered. This study aimed to review the available knowledge on the presence of food safety hazards in seaweed, including factors influencing their presence, and to prioritize the hazards that may pose a risk to human health. Given current knowledge from the literature, data from the Rapid Alert System for Food and Feed, and results from a stakeholder survey, 22 food safety hazards were ranked into major (4), moderate (5), and minor (13) hazards. Arsenic, cadmium, iodine, and Salmonella were identified as major hazards. Hazards, where data gaps exist, should be carefully assessed. These include pesticide residues, dioxins and polychlorinated biphenyls, brominated flame retardants, polycyclic aromatic hydrocarbons, pharmaceuticals, marine biotoxins, allergens, micro‐ and nanoplastics, other pathogenic bacteria, norovirus, and hepatitis E virus. It is recommended to collect more data on these hazards in future studies. Many factors can affect the presence of hazards including seaweed type, physiology, season, harvest and cultivation environment, geography including the location of cultivation, alongside further processing. Moreover, when seaweed is cultivated near industrialized or anthropogenic activities, these activities may negatively influence water quality, which can increase the likelihood of hazards in seaweed. Results of the ranking prioritized hazards can be used to prioritize monitoring programs and adjusted given future additional knowledge covering the data gaps.

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Toxic elements and speciation in seafood samples from different contaminated sites in Europe

Cited by 74 publications

References 64 publications

Mercury health risk assessment among a young adult Lebanese population

Mercury health risk assessment among a young adult Lebanese population

Concentrations and speciation of arsenic in New England seaweed species harvested for food and agriculture

Food safety hazards in the European seaweed chain

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