A baseline study on trace element based sediment pollution and potential ecological risk of reef sediments of Musal, Manoli and Manoli putti Islands, Gulf of Mannar, India

Saravanan, P.; Pradhap, D.; Krishnakumar, S.; Silva, Judith D.; Vidyasakar, A.; Sackaria, Merin; Godson, Prince S.; Arumugam, K.; Magesh, N.S.

doi:10.1016/j.marpolbul.2018.05.024

Cited by 7 publications

(3 citation statements)

References 20 publications

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“…years due to open-cast mining of Ni ores that developed across the main island since the middle of the 19 th century. As a consequence, the concentration of trace metals in the mangrove (Marchand et al, 2012;Noël et al, 2014Noël et al, , 2015 and lagoon (Ambatsian et al, 1997;Dalto et al, 2006;Fernandez et al, 2006) sediments of New Caledonia are significantly higher than in other similar environmental settings around the world (Pacifico et al, 2007;Morisson et al, 2010;Lewis et al, 2011;Coates-Marnane et al, 2016;Birch et al, 2017;Saravanan et al, 2018;Zonta et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Nickel and iron partitioning between clay minerals, Fe-oxides and Fe-sulfides in lagoon sediments from New Caledonia

Merrot

Juillot

Noël

et al. 2019

Science of The Total Environment

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Pyrite contribution to Ni and Fe speciation is low and restricted to the sediments close to the shore Clay minerals are the major host for Fe and Ni across the shore-to-reef gradient Fe-rich smectite, glauconite, chrysotile and greenalite/berthierine are the major Fe and Ni-bearing clay minerals identified Greenalite/berthierine is the most Ni-rich clay mineral identified and it is considered to have formed in-situ upon early diagenesis Green clay authigenesis might represent a major process for trace metals cycling in shallow lagoon sedimentary settings *Highlights (for review : 3 to 5 bullet points (maximum 85 characters including spaces per bullet point) Lagoon sediments, trace metals, speciation, green clays, TEM, XAS.

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Section: Introductionmentioning

confidence: 99%

Nickel and iron partitioning between clay minerals, Fe-oxides and Fe-sulfides in lagoon sediments from New Caledonia

Merrot

Juillot

Noël

et al. 2019

Science of The Total Environment

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“…Its calculation is used to evaluate the degree of anthropogenic pollution by trace elements [43]. Since then, this concept has been used by several authors [10,26,42,[44][45][46][47][48], whether on soil or sediment to determine the anthropogenic contribution in terms of trace element pollution. However, concerns exist regarding the choice of the reference element (normalizer) and the choice of the reference material (uncontaminated) because, according to References [49,50], these two choices determine the reliability and representativeness of the enrichment calculated in the regional context.…”

Section: Enrichment Factormentioning

confidence: 99%

“…Its choice is not universal and depends on the lithological and physico-chemical characteristics of the study area [55]. A through literature, several elements such as Al [26,41,44,47,61,62], Cs [50,54], Fe [4,48,63], Li [64], Sc [45,58], and the organic matter [65] were used as references to calculate EF. Remaining in the same concept, other authors have also made comparative analyses using at least two reference elements [8,42,46], leading to various results depending on the benchmark used.…”

Section: Enrichment Factormentioning

confidence: 99%

Geochemical Composition of the Lomé Lagoon Sediments, Togo: Seasonal and Spatial Variations of Major, Trace and Rare Earth Element Concentrations

Badassan

Avumadi

Ouro-Sama

et al. 2020

Water

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The concentrations of major, trace (TE), and rare earth (REE) elements and their seasonal and spatial distribution were studied on the fine fraction (<63 µm) of the sediments of the Lomé lagoons (West Lake, East Lake, and Lake Bè). The sediments were collected on a total of nine sampling sites (three per Lake) during two campaigns (dry season and rainy season). The quality of the sediments was assessed on the basis of the enrichment factor (EF) and the labile or non-residual fraction (NRF) in relation to the values recommended for the quality of the sediments (Sediment Quality Guidelines, SQG). The distribution of rare earth elements shows enrichments in light rare earths superior to those of heavy rare earth elements during any season. Positive Ce anomalies are less noticeable and less variable between seasons than Eu anomalies. La/Yb ratios are positively correlated with the percentage of Al and Fe oxides and with the percentage of fine fractions. The main bearing phases of rare earth elements are, therefore, Al and Fe oxides and the finest fractions of the sediments. The concentrations of trace elements vary little, according to the seasons, but show strong variations from one element to another. The degrees of enrichment obtained are moderate for Bi, Cr, Ga, Mo, Pb, Sn, and Zn (1.5 < EF < 5) to significant for As, Cd, and Sb (5 < EF < 20) for all sites of Lake Bè. For the sites of West Lake, the degrees of enrichment obtained are moderate for As, Cd, Cu, Mo, and Pb (1.5 < EF < 5) to a significance for As, Bi, Cd, Pb, Sb, Sn, and Zn (5 < EF < 20). Only the East Lake sites show high degrees of enrichment for elements such as Sb and Sn (20 < EF < 40). Trace elements (TE) such as As, Cd, Cu, and Ni have total concentrations within the range of variation of the SQG concentrations (particularly Probable Effect Level (PEL) and Effect Range Median (ERM)), whereas Cr, Pb, and Zn total concentrations are higher. The ranking of priority sites with respect to the sediment contamination is determined according to ERM and PEL quotients in relation to the probability of toxicity for benthic organisms. For almost all the sites, the priority is lowest to medium-low with regard to As, Cd, and Cu and medium-high (Cr and Ni) to highest (Pb and Zn), particularly for the East and West Lakes. Moreover, the NRF can represent significant percentages of the total TE concentrations: 5% to 15% for As, Bi, Ni, V, Mo, and Sc, 15% to 25% for Co, Cu, and Sr, 25% to 40% for Pb and Zn and, lastly, 47% to 55% for Cd.

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Bioavailability of chromium, nickel, iron and manganese in relation to their speciation in coastal sediments downstream of ultramafic catchments: A case study in New Caledonia

et al. 2022

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A baseline study on trace element based sediment pollution and potential ecological risk of reef sediments of Musal, Manoli and Manoli putti Islands, Gulf of Mannar, India

Cited by 7 publications

References 20 publications

Nickel and iron partitioning between clay minerals, Fe-oxides and Fe-sulfides in lagoon sediments from New Caledonia

Nickel and iron partitioning between clay minerals, Fe-oxides and Fe-sulfides in lagoon sediments from New Caledonia

Geochemical Composition of the Lomé Lagoon Sediments, Togo: Seasonal and Spatial Variations of Major, Trace and Rare Earth Element Concentrations

Bioavailability of chromium, nickel, iron and manganese in relation to their speciation in coastal sediments downstream of ultramafic catchments: A case study in New Caledonia

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