Assessment of metal enrichment and their bioavailability in sediment and bioaccumulation by mangrove plant pneumatophores in a tropical (Zuari) estuary, west coast of India

Noronha-D’Mello, Cheryl A.; Nayak, G. N.

doi:10.1016/j.marpolbul.2016.06.059

Cited by 36 publications

(9 citation statements)

References 67 publications

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“…The spatial distribution in HM concentrations among reservoirs is associated with different anthropogenic activities [13,14]. The distribution depends on hydrodynamic conditions, type of sediment and metal sources [15]. Moreover, shape and morphology of the reservoir [16], reservoir operation [17] and the biochemical processes [18] modify the HM deposition.…”

Section: Introductionmentioning

confidence: 99%

Heavy Metals in Bottom Sediments of Reservoirs in the Lowland Area of Western Poland: Concentrations, Distribution, Sources and Ecological Risk

Sojka

Jaskuła

Siepak

2018

Water

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The paper presents the results of a study of heavy metals (HMs) concentrations in six retention reservoirs located in the lowland area of western Poland. The objectives of this study were to analyze the Cd, Cr, Cu, Ni, Pb and Zn concentrations, assess contamination and ecological risk, analyze the spatial variability of HM concentrations and identify potential sources and factors determining the concentration and spatial distribution. The bottom sediment pollution by HMs was assessed on the basis of the index of geo-accumulation (Igeo), enrichment factor (EF), pollution load index (PLI) and metal pollution index (MPI). To assess the ecological risk associated with multiple HMs, the mean probable effect concentration (PEC) quotient (Qm-PEC) and the toxic risk index (TRI) were used. In order to determine the similarities and differences between sampling sites in regard to the HM concentration, cluster analysis (CA) was applied. Principal component analysis (PCA) was performed to assess the impact of grain size, total organic matter (TOM) content and sampling site location on HM spatial distribution. Additionally, PCA was used to assess the impact of catchment, reservoir characteristics and hydrological conditions. The values of Igeo, EF, MPI and PLI show that Cd, Cr, Cu, Ni and Pb mainly originate from geogenic sources. In contrast, Zn concentrations come from point sources related to agriculture. The mean PEC quotient (Qm-PEC) and TRI value show that the greatest ecological risk occurred at the inlet to the reservoir and near the dam. The analysis showed that the HMs concentration depends on silt and sand content. However, the Pb, Cu, Cd and Zn concentrations are associated with TOM as well. The relationship between individual HMs and silt was stronger than with TOM. The PCA results indicate that HMs with the exception of Zn originate from geogenic sources—weathering of rock material. However, the Ni concentration may additionally depend on road traffic. The results show that a reservoir with more frequent water exchange has higher HMs concentrations, whereas the Zn concentration in bottom sediments is associated with agricultural point sources.

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Section: Introductionmentioning

confidence: 99%

Heavy Metals in Bottom Sediments of Reservoirs in the Lowland Area of Western Poland: Concentrations, Distribution, Sources and Ecological Risk

Sojka

Jaskuła

Siepak

2018

Water

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“…Malik is the first researcher to use S. alba for bioaccumulation and predict its function of chelation of metal ions in soil and wastewater [22][23]. Annie et al studied the Pbaccumulating capacity of three common mangrove plants and found that the Pb 2+ -accumulating ability of S. alba was the strongest (98.5 mg kg −1 ) in root, followed by Avicennia marina (63.0 mg kg -1 ) in leaf and Rhizophora stylosa (20.5 mg kg -1 ) in leaf [24].…”

Section: Discussionmentioning

confidence: 99%

Gene Cloning, Protein Expression and Functional Analysis of a type 3 Metallothionein with Bioaccumulation Potential from Sonneratia alba

Niu¹,

Li²,

Yi³

et al. 2018

Pol. J. Environ. Stud.

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Sonneratia alba (S. alba) is a mangrove species grown in brackish water of tropical and subtropical regions. Due to its unique environment, it has evolved various mechanisms for modulating salt and metal levels. In order to find the genes connected with bioaccumulation of metals, the root transcriptome annotation of Sonneratia alba was analyzed and a new metallothionein (MT) gene was cloned. Sequence analysis found that the new MT gene belongs to type 3 MT, which is mostly expressed in roots. A simple and efficient method was used to express the type 3 MT of S. alba (SaMT3) by transforming the recombinant expression vector pET15b-SaMT3 into Escherichia coli (E. coli) Rosetta-gami and induction with the optimal conditions of 500 μM Isopropyl β-D-1-thiogalactopyranoside (IPTG) at 24ºC for 12 h. OD 600

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“…The Chinese standard (Ministry of Environmental Protection of China 1995) is stricter than the Indian standard (Bhatnagar and Awasthi 2000) and the European Union standard (EU 2006). The concentrations of Cu, Zn, Table 2 Values of the biotransfer factors (Ba) of heavy metals into animal products used in this work (Ngo 2016) Heavy metal Ba (day/kg of animal product)…”

Section: Concentrations Of Heavy Metals In the Amended Soilmentioning

confidence: 99%

“…Plants growing in an environment polluted with metals can accumulate those trace elements at high concentrations, resulting in a serious risk to human health when foodstuffs made from those plants are consumed (Noronha-D'Mello and Nayak 2016;Xu et al 2018;Singh et al 2018). This issue has generated considerable public concern.…”

Section: Introductionmentioning

confidence: 99%

Health risk assessment of heavy metals (Cu, Zn, and Mn) in wild oat grown in soils amended with sediment dredged from the Joumine Dam in Bizerte, Tunisia

Chabchoubi

Mtibaa

Ksibi

et al. 2020

Euro-Mediterr J Environ Integr

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The Joumine Dam located in northern Tunisia has lost more than 20% of its initial storage capacity due to sedimentation, meaning that sediment management is necessary. The sediments at the reservoir bottom act as a sink for nutrients and chemicals originating from the upper agricultural lands and take the form of suspended particles. We proposed that the dredged sediments could be used to amend arid to semiarid soils, as this would partially cover the financial burden of dredging works and reduce the volume of these deposits. However, to check the feasibility of using the sediments as a fertilizer, it was necessary to assess the potential health risks from contaminants in the sediments. Therefore, the present study aimed to evaluate the human health risk (i.e., the hazard quotient, HQ) from heavy metals consumed due to the ingestion of Bromus ramosus (wild oat) grown in soil amended with the Joumine Dam sediments. Plant growth was monitored in macrocosm (amendment rate of 1.17%) and microcosm (amendment rate ≤ 10%) bioassays to elucidate the metal concentrations in roots, stems, leaves, and seeds. Zn, Cu, and Mn concentrations were analyzed in the plants grown in the macrocosm experiments, while the follow-up was only performed for Zn in the plants grown in the microcosm experiments. The human exposure to soil pollutants (HESP) evaluation model was adopted to evaluate the health risk (HQ) to humans through direct and indirect oral exposure to heavy metals in wild oat. At the macrocosm scale, Cu was found to be the main source of risk (HQ = 1.86) to children. At the microcosm scale, utilization of the sediment reduced the mobility and bioavailability of copper in the soil, thus decreasing the potential health risk from this metal. Graphic abstract

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Assessment of metal enrichment and their bioavailability in sediment and bioaccumulation by mangrove plant pneumatophores in a tropical (Zuari) estuary, west coast of India

Cited by 36 publications

References 67 publications

Heavy Metals in Bottom Sediments of Reservoirs in the Lowland Area of Western Poland: Concentrations, Distribution, Sources and Ecological Risk

Heavy Metals in Bottom Sediments of Reservoirs in the Lowland Area of Western Poland: Concentrations, Distribution, Sources and Ecological Risk

Gene Cloning, Protein Expression and Functional Analysis of a type 3 Metallothionein with Bioaccumulation Potential from Sonneratia alba

Health risk assessment of heavy metals (Cu, Zn, and Mn) in wild oat grown in soils amended with sediment dredged from the Joumine Dam in Bizerte, Tunisia

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