Trace metal concentrations in Mediterranean blue mussel and surface sediments and evaluation of the mussels quality and possible risks of high human consumption

AbstractThe Rio Doce estuary in Brazil was impacted by the deposition of mine tailings caused by the collapse of a mining dam in 2015. Since the disaster, the estuary is experiencing chronic trace metal contamination effects, but potential trace metal accumulation in fishes has not been reported. Trace metals in aquatic ecosystems pose severe threats to the aquatic biota, so we hypothesized that the accumulation of trace metals in estuarine sediments nearly two years after the disaster would cause contaminant bioaccumulation, resulting in the biosynthesis of metal-responsive proteins in fishes. We determined trace metal concentrations in sediment samples, metal concentrations, and quantified stress protein concentrations in the liver and muscle tissue of five different fish species in the estuary. Our results revealed high concentrations of trace metals in estuarine sediments when compared to published baseline values for this estuary. The demersal fish species Cathorops spixii and Genidens genidens had the highest Hg, As, Se, Cr, and Mn concentrations in both hepatic and muscle tissues. Metal bioaccumulation in fish was statistically correlated with the biosynthesis of metallothionein and reduced glutathione in both fish liver and muscle tissue. The trace metals detected in fish tissues resemble those in the contaminated sediments present at the estuary at the time of this study and were also significantly correlated to protein levels. Trace metals in fish muscle were above the maximum permissible limits for human consumption, suggesting potential human health risks that require further determination. Our study supports the high biogeochemical mobility of trace metals between contaminated sediments and local biota in estuarine ecosystems.

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MINOR AND TRACE METAL CONCENTRATIONS IN SURFACE SEDIMENTS OF THREE SAN FRANCISCO BAY REGION RESERVOIRS

10.1130/abs/2016cd-274520 ◽

2016 ◽

Author(s):

Jessica Rodriguez ◽

◽

Shannon Kreutzer ◽

Kristina L. Faul ◽

Laura Rademacher

Keyword(s):

Trace Metal ◽

San Francisco ◽

Surface Sediments ◽

San Francisco Bay ◽

Metal Concentrations

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Spatial and temporal variations in trace metal concentrations in surface sediments of the Marennes Oléron Bay. Relation to hydrodynamic forcing

Continental Shelf Research ◽

10.1016/j.csr.2011.03.006 ◽

2011 ◽

Vol 31 (9) ◽

pp. 997-1007 ◽

Cited By ~ 20

Author(s):

Emilie Strady ◽

Stéphane Kervella ◽

Gérard Blanc ◽

Serge Robert ◽

Jean Yves Stanisière ◽

...

Keyword(s):

Trace Metal ◽

Surface Sediments ◽

Temporal Variations ◽

Spatial And Temporal Variations ◽

Metal Concentrations

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Geochemistry, spatial distribution, and sources of trace element pollution in the surface sediments of Port Hacking, southern Sydney, Australia

Anthropocene Coasts ◽

10.1139/anc-2020-0005 ◽

2021 ◽

Vol 4 (1) ◽

pp. 1-16

Author(s):

Yasir M. Alyazichi ◽

Amin K. Qasim ◽

Brian G. Jones ◽

Errol McLean ◽

Jindy Murad ◽

...

Keyword(s):

Spatial Distribution ◽

Trace Metal ◽

Urban Development ◽

Surface Sediments ◽

Coastal Environments ◽

Metal Concentrations ◽

Surface Samples ◽

Trace Element Pollution ◽

Catchment Areas ◽

Sydney Australia

Coastal environments are subject to trace metal pollution via a combination of industry and urbanised sources. The pollutants accumulate within surface sediments, especially in the quieter backwaters of estuaries. An environmental assessment of the Port Hacking estuary, southern Sydney, Australia, was undertaken using 233 surface samples. Trace metal concentrations (Ni, Cr, Cu, Zn, Pb, and As) in these samples indicated that most elements in Port Hacking were below the relevant ANZECC/ARMCANZ guideline low trigger value (ISQG-low), but a few sites exceeded this value. The low trace metal concentrations are mainly because the catchment areas have limited urban development and few discharge points. In contrast, one site in Gunnamatta Bay has Zn and Cu concentrations that exceeded the high trigger value (ISQG-high), due to moored vessels, boatyards, and stormwater outlets in this vicinity. Port Hacking is considered to be relatively unpolluted and healthy when compared with other Sydney estuaries.

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Trace metals in sediments at the lower reaches of Mediterranean coastal rivers, Israel

Water Science & Technology ◽

10.2166/wst.1995.0690 ◽

1995 ◽

Vol 32 (9-10) ◽

pp. 239-246 ◽

Cited By ~ 1

Author(s):

B. Herut ◽

H. Hornung ◽

N. Kress ◽

M. D. Krom ◽

M. Shirav

Keyword(s):

Trace Metal ◽

Surface Sediments ◽

Drainage Basin ◽

Stream Sediments ◽

Point Sources ◽

Metal Concentrations ◽

Fine Grained ◽

Sources Of Pollution ◽

Zinc Cadmium ◽

Copper Zinc

Concentrations of mercury, lead, copper, zinc, cadmium, iron and partially chromium, manganese, nickel and aluminium, were recorded in surface sediments at the lower reaches of 11 rivers from the Mediterranean coastal zone of Israel, during 1988-1993. Excluding the lower Kishon river, no major contamination was found at most of the stations when trace metal concentrations were normalized against iron concentrations (trace metal/iron ratios) and compared to levels recorded in stream sediments from the southern drainage basin of the Kishon river. Minor enrichments found in part of the rivers are attributed to land-based point sources of pollution. Variations in trace metal concentrations at the estuaries are related to high influx of fine-grained sediments transported by heavy floods during rainy winters, which later are resuspended and transported seaward by bottom currents.

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Trace metal concentrations in sediments from eastern Long Island Sound

Open-File Report ◽

10.3133/ofr94620 ◽

1994 ◽

Author(s):

A.M. Moffett ◽

Lawrence J. Poppe ◽

Ralph S. Lewis

Keyword(s):

Trace Metal ◽

Long Island ◽

Long Island Sound ◽

Metal Concentrations ◽

Island Sound

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The Voltammetric Determination of Trace Metal Concentrations and Organic Complexation in Seawater.

10.21236/ada257565 ◽

1992 ◽

Author(s):

Kenneth W. Bruland

Keyword(s):

Trace Metal ◽

Voltammetric Determination ◽

Metal Concentrations ◽

Organic Complexation

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Chemical Composition and Metal Speciation in Porewaters from the Upper Qu’Appelle River Basin, Saskatchewan

Water Quality Research Journal ◽

10.2166/wqrj.1993.005 ◽

1993 ◽

Vol 28 (1) ◽

pp. 83-110 ◽

Cited By ~ 1

Author(s):

Richard E. Farrell ◽

Jae E. Yang ◽

P. Ming Huang ◽

Wen K. Liaw

Keyword(s):

Amino Acids ◽

Trace Metal ◽

River Basin ◽

Drainage Basin ◽

Metal Speciation ◽

Anthropogenic Activities ◽

High Concentration ◽

Metal Concentrations ◽

Carbonate Equilibria ◽

The Impact

Abstract Porewater samples from the upper Qu’Appelle River basin in Saskatchewan, Canada, were analyzed to obtain metal, inorganic ligand and amino add profiles. These data were used to compute the aqueous speciation of the metals in each porewater using the computer program GEOCHEM-PC. The porewaters were classified as slightly to moderately saline. Metal concentrations reflected both the geology of the drainage basin and the impact of anthropogenic activities. Whereas K and Na were present almost entirely as the free aquo ions, carbonate equilibria dominated the speciation of Ca. Mg and Mn (the predominant metal ligand species were of the type MCO3 (s). MCO30. and MHCO3+). Trace metal concentrations were generally within the ranges reported for non-polluted freshwater systems. Whereas the speciation of the trace metals Cr(III) and Co(II) was dominated by carbonate equilibria, Hg(II)-, Zn(II)- and Fe(II)-speciation was dominated by hydroxy-metal complexes of the type M(OH)+ and M(OH)2°. The speciation of Fe(III) was dominated by Fe(OH)3 (s). In porewaters with high chloride concentrations (> 2 mM), however, significant amounts of Hg(II) were bound as HgCl20 and HgClOH0. The aqueous speciation of Al was dominated by Al(OH)4− and Al2Si2O4(OH)6 (s). Total concentrations of dissolved free amino acids varied from 15.21 to 25.17 umole L−1. The most important metal scavenging amino acids were histidine (due to high stability constants for the metal-histidine complexes) and tryptophan (due to its relatively high concentration in the porewaters. i.e., 5.96 to 7.73 umole L−1). Secondary concentrations of various trace metal-amino add complexes were computed for all the porewaters, but metal-amino acid complexes dominated the speciation of Cu(II) in all the porewaters and Ni(II) in two of the porewaters.

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