Mercury, cadmium and lead levels in samples of the main traded fish and shellfish species in Galicia, Spain

Blanco, Sonia Lucía; Gonzalez, Jose; Vieites, Juan M.

doi:10.1080/19393210802236893

Cited by 34 publications

(15 citation statements)

References 12 publications

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“…Mercury contents for Atlantic Bonito samples throughout year were below the limits and the limits horse mackerel exceeded in October. Mercury levels in the literature were reported 0.12 mg kg )1 for muscles of mackerel (Blanco et al, 2008), 0.03 for muscles of horse mackerel, 0.04 for muscles of mackerel (Yusa´et al, 2008). The maximum contents of cadmium and lead were 0.161 mg kg )1 (February) and 0.355 mg kg )1 (March) for Atlantic Bonito (Table 4), respectively.…”

Section: Metal Analysismentioning

confidence: 91%

“…Cadmium levels in the literature were reported 0.47 mg kg )1 for muscles of horse mackerel, 0.09 mg kg )1 for muscles of bonitos (Tu¨zen, 2003), 0.50 mg kg )1 for muscles of Atlantic horse mackerel, 0.90 mg kg )1 for muscles of Atlantic Bonito (Uluozlu et al, 2007), 0.01 mg kg )1 for muscles of mackerel and horse mackerel (Yusa´et al, 2008). Lead levels in the literature were reported 0.85 mg kg )1 for muscles of horse mackerel, 0.22 mg kg )1 for muscles of bonitos (Tu¨zen, 2003), 1.03 mg kg )1 for muscles of Mediterranean horse mackerel (Yılmaz, 2003), 0.68 mg kg )1 for muscles of Atlantic horse mackerel, 0.76 mg kg )1 for muscles of Atlantic Bonito (Uluozlu et al, 2007), 0.10 mg kg )1 for muscles of mackerel (Blanco et al, 2008), 0.04 mg kg )1 for muscles of mackerel, 0.03 mg kg )1 for muscles of horse mackerel (Yusa´et al, 2008).…”

Section: Metal Analysismentioning

confidence: 98%

See 1 more Smart Citation

Micro, macro mineral and proximate composition of Atlantic bonito and horse mackerel: a monthly differentiation

Ozden¹

2010

Int J of Food Sci Tech

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Atlantic Bonito and horse mackerel were investigated for proximate and elemental composition throughout the year. Two fish species were collected from the Istanbul local fish market from December (2006) to November (2007) during the fishing season. Highest protein values were found in the June for Atlantic Bonito, in July for horse mackerel. Highest fat value of Atlantic Bonito and horse mackerel were determined in November. Trace and potential toxic minerals (mercury, cadmium, lead, copper and zinc) exceeded the legislative limits in some months of the year. The highest concentration among the elements was obtained for sodium, potassium, calcium, magnesium, manganese, iron, zinc, iodine and selenium throughout the year.

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Section: Metal Analysismentioning

confidence: 91%

Section: Metal Analysismentioning

confidence: 98%

Micro, macro mineral and proximate composition of Atlantic bonito and horse mackerel: a monthly differentiation

Ozden¹

2010

Int J of Food Sci Tech

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“…Blanco, González, and Vieites (2008) also studied Hg in canned and frozen tuna, having obtained values ranging from <0.10 to 0.87 and from <0.10 to 0.49 mg kg À1 , respectively. Yusà et al (2008) observed Hg values in tuna varying from 0.02 to 2.5 mg kg À1 .…”

Section: Mercurymentioning

confidence: 99%

Assessment of trace elements in fishes of Japanese foods marketed in São Paulo (Brazil)

et al. 2011

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a b s t r a c tIn recent years, there has been increasing fish consumption in Brazil, largely due to the popularity of Japanese cuisine. No study, however, has previously assessed the presence of inorganic contaminants in species used in the preparation of Japanese food. In this paper, we determined total arsenic, cadmium, chromium, total mercury, and lead contents in 82 fish samples of Tuna (Thunnus thynnus), Porgy (Pagrus pagrus), Snook (Centropomus sp.), and Salmon (Salmo salar) species marketed in São Paulo (Brazil). Samples were mineralized in HNO 3 /H 2 O 2 for As, Cd, Cr and Pb, and in HNO 3 /H 2 SO 4 /V 2 O 5 for Hg. Inorganic contaminants were determined after the validation of the methodology using Inductively Coupled Plasma Optical Emission Spectrometry (ICP OES); and for Hg, an ICP-coupled hydride generator was used. Concentration ranges for elements analyzed in mg kg À1 (wet base) were as follows: Total As (0.11e10.82); Cd (0.005e0.047); Cr (0.008e0.259); Pb (0.026e0.481); and total Hg (0.0077e0.9681). As and Cr levels exceeded the maximum limits allowed by the Brazilian law (1 and 0.1 mg kg À1 ) in 51.2 and 7.3% of the total samples studied, respectively. The most contaminated species were porgy (As ¼ 95% and Cr ¼ 10%) and tuna (As 91% and Cr ¼ 10%). An estimation of As, Cd, Pb, and Hg weekly intake was calculated considering a 60 kg adult person and a 350 g consumption of fish per week, with As and Hg elements presenting the highest contribution on diets reaching 222% of provisional tolerable weekly intake (PTWI) for As in porgy and 41% of PTWI for Hg in tuna.

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“…Tuna has been estimated to be amongst the most relevant Hg sources worldwide [61,62,63,64,65]. Of particular note in more recent studies is that Hg from canned tuna may be less bioaccessible than Hg from raw tuna [51,66].…”

Section: Humansmentioning

confidence: 99%

A Review of Mercury Bioavailability in Humans and Fish

Bradley

Barst

Basu

2017

IJERPH

178

100

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To estimate human exposure to methylmercury (MeHg), risk assessors often assume 95%–100% bioavailability in their models. However, recent research suggests that assuming all, or most, of the ingested mercury (Hg) is absorbed into systemic circulation may be erroneous. The objective of this paper is to review and discuss the available state of knowledge concerning the assimilation or bioavailability of Hg in fish and humans. In fish, this meant reviewing studies on assimilation efficiency, that is the difference between ingested and excreted Hg over a given period of time. In humans, this meant reviewing studies that mostly investigated bioaccessibility (digestive processes) rather than bioavailability (cumulative digestive + absorptive processes), although studies incorporating absorption for a fuller picture of bioavailability were also included where possible. The outcome of this review shows that in a variety of organisms and experimental models that Hg bioavailability and assimilation is less than 100%. Specifically, 25 studies on fish were reviewed, and assimilation efficiencies ranged from 10% to 100% for MeHg and from 2% to 51% for Hg(II). For humans, 20 studies were reviewed with bioaccessibility estimates ranging from 2% to 100% for MeHg and 0.2% to 94% for Hg(II). The overall absorption estimates ranged from 12% to 79% for MeHg and 49% to 69% for Hg(II), and were consistently less than 100%. For both fish and humans, a number of cases are discussed in which factors (e.g., Hg source, cooking methods, nutrients) are shown to affect Hg bioavailability. The summaries presented here challenge a widely-held assumption in the Hg risk assessment field, and the paper discusses possible ways forward for the field.

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Mercury, cadmium and lead levels in samples of the main traded fish and shellfish species in Galicia, Spain

Cited by 34 publications

References 12 publications

Micro, macro mineral and proximate composition of Atlantic bonito and horse mackerel: a monthly differentiation

Micro, macro mineral and proximate composition of Atlantic bonito and horse mackerel: a monthly differentiation

Assessment of trace elements in fishes of Japanese foods marketed in São Paulo (Brazil)

A Review of Mercury Bioavailability in Humans and Fish

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