Arsenic Contents and Its Biotransformation in the Marine Environment

Kalia, Kiran; Khambholja, Devang Bharatkumar

doi:10.1016/b978-0-12-418688-0.00028-9

Cited by 20 publications

(10 citation statements)

References 112 publications

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“…In the current study, iAs contribution ranged between 0.01% to 7.4% of the TAs (Table 2). The majority of TAs may be attributed to the nontoxic organic form arsenobetaine (AsB), which is the most commonly observed form of As in marine organisms and recognized commonly as “fish arsenic” (Edmonds et al., 1997; Francesconi, 2010; Kalia & Khambholja, 2015). AsB in marine organisms has been reported to be the dominating chemical fraction, often exceeding 90% of TAs (Kalantzi et al., 2017; Ruttens et al., 2012; Zhang et al., 2017).…”

Section: Resultsmentioning

confidence: 99%

A survey of arsenic, mercury, cadmium, and lead residues in seafood (fish, crustaceans, and cephalopods) from the south‐eastern Mediterranean Sea

Ramon

Morick

Croot

et al. 2021

Journal of Food Science

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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.

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Section: Resultsmentioning

confidence: 99%

A survey of arsenic, mercury, cadmium, and lead residues in seafood (fish, crustaceans, and cephalopods) from the south‐eastern Mediterranean Sea

Ramon

Morick

Croot

et al. 2021

Journal of Food Science

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“…Additionally, in this study, total arsenic (inorganic + organic) concentration was quantified in fish samples. Several studies have shown that in fish, this metalloid is found mainly in the form of arsenobetaine, a non-toxic organic form, and the rest is inorganic arsenic, which is highly toxic and carcinogenic [20]. However, fish samples were not analyzed for inorganic arsenic, therefore, for all risk assessment methods (EDI, HQ, and CRlim), 10% of total arsenic was assumed to be inorganic arsenic, according to the worst-case scenario established by the USEPA for health risk assessment of As intake due to fish consumption [21].…”

Section: Human Health Risk Assessmentmentioning

confidence: 99%

Assessment of Potential Health Risks Associated with the Intake of Heavy Metals in Fish Harvested from the Largest Estuary in Colombia

Pinzón-Bedoya

Pinedo‐Hernández

et al. 2020

IJERPH

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This study assesses the potential human health risks posed by six heavy metals (Hg, As, Pb, Cd, Cu, and Zn) found in five of the most consumed fish species (Mugil incilis, Centropomus undecimalis, Cathorops mapale, Eugerres plumieri, and Elops smithi) collected by the riverine population living in Ciénaga Grande de Santa Marta (CGSM), the largest estuary in Colombia. Metal concentrations were low compared with those reported in other regions around the world and the maximum value established by international monitoring organizations. The estimation of the potential risk (HQ) indicated that Cu and Hg could generate negative effects in groups of women of childbearing age (WCA) and the remaining population (RP), because they exceeded their related reference doses, with HQ values > 1; however, Cu and Hg concentrations were not high in fish and EWI, MFW, or MeHgPSL values shows that there is no evidence of a potential health risk from MeHg exposure in the study population. Therefore, the recommendations are to establish continuous monitoring of heavy metals together with strategies that address the high fish consumption, as well as to implement mechanisms for the mitigation of contamination of the watershed, to ensure the safety of organisms in the ecosystem and human health, not only of populations who depend on aquatic resources in the area but also of those that market and consume these resources in the Colombian Caribbean.

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“…Arsenic concentrations in non-contaminated near shore or estuarine sediments are in the order of 5-15 mg/kg [43], which encompasses the majority of the values obtained for Mussulo sediments. This element tends to be enriched in sea water relative to river water [44] and it can precipitate in reduced marine environments [45]. Taking into consideration the influence of authigenic salt-minerals on sediment composition and the occurrence of traces of pyrite in some samples, it is probable that the relatively high As concentration in some inner lagoon locations is related with local salt-mineral formation.…”

Section: Factors Controlling Sediment Compositionmentioning

confidence: 99%

Sources of Potentially Toxic Elements in Sediments of the Mussulo Lagoon (Angola) and Implications for Human Health

Dinis

Armando

Pratas

2020

IJERPH

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The Mussulo lagoon is a coastal environment located near Luanda, one of the SW African cities that has been growing more rapidly during the last decades. Geochemical, mineralogical, and grain-size data obtained for the lagoon sediments are analyzed together, in order to establish the factors that control the distribution of some potentially toxic elements (PTEs). Sediments from northern location tend to be enriched in feldspar and, despite some variability in grain-size distributions, in fine-grained detrital minerals; southern lagoon sediments display very homogenous grain-size distribution and are enriched in minerals associated with salt precipitation (halite and gypsum). Multivariate statistics reveal a close link between some PTEs, namely Co, Hg, Ni, and Pb, for which an anthropogenic source can be postulated. On the other end, As seems to be associated with natural authigenic precipitation in southern lagoon sectors. Sediments enriched in clay also tend to yield more Fe, Mn, Zn, and Cu, but it is unclear whether their sources are natural or anthropogenic. Hazard indexes calculated for children are higher than 1 for As and Co, indicating potential non-carcinogenic risk. For the other elements, and for adults, there is no potential carcinogenic or non-carcinogenic risk.

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Arsenic Contents and Its Biotransformation in the Marine Environment

Cited by 20 publications

References 112 publications

A survey of arsenic, mercury, cadmium, and lead residues in seafood (fish, crustaceans, and cephalopods) from the south‐eastern Mediterranean Sea

A survey of arsenic, mercury, cadmium, and lead residues in seafood (fish, crustaceans, and cephalopods) from the south‐eastern Mediterranean Sea

Assessment of Potential Health Risks Associated with the Intake of Heavy Metals in Fish Harvested from the Largest Estuary in Colombia

Sources of Potentially Toxic Elements in Sediments of the Mussulo Lagoon (Angola) and Implications for Human Health

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