Estuaries Ecosystems Health Status – Profiling the Advancements in Metal Analysis

Aris, Ahmad Zaharin; Looi, Ley Juen

doi:10.1007/978-3-319-06305-8_16

Cited by 3 publications

(1 citation statement)

References 89 publications

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“…Once trace elements are discharged to the intertidal zone from inland sources via various environmental pathways (Hwang et al, 2019), they are persistent in the environment and could bioaccumulate in aquatic organisms (Mottalib et al, 2018;Ali et al, 2019). In the intertidal zone, sediment acts as important sinks of trace elements and is able to retain contaminants from various pollution sources (Aris and Looi, 2015;Zhu et al, 2018;Thanh-Nho et al, 2019). Macrobenthic fauna living in close contact with intertidal sediments is especially susceptible to trace elements contamination and is able to accumulate both essential and nonessential elements (Ahmed et al, 2011;Tavakoly Sany et al, 2014;Veiga et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Elemental Composition and Health Risk Assessment of Giant Mudskipper (Periophthalmodon schlosseri) From the Intertidal Zone of the West Coast of Peninsular Malaysia

et al. 2021

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The elemental pollution in the intertidal zone of the West Coast of Peninsular Malaysia is of concern because this place is an ultimate sink of anthropogenic contaminants. In this study, the elemental concentrations (Al, Fe, Ba, Co, Cu, Cr, Mn, Ni, Pb, Zn, As, and Cd) in various tissues (muscle, gill, liver, gastrointestinal tract, and scale) of the giant mudskippers (Periophthalmodon schlosseri) from the West Coast of Peninsular Malaysia were determined by the inductively coupled plasma-mass spectrometry. The potential health risks associated with fish muscle consumption were assessed using estimated weekly intake (EWI), target hazard quotient (THQ), and target cancer risk (TR). The results showed that relatively high concentrations of Fe (1,641.91 ± 96.77 mg/kg), Ba (7.07 ± 0.05 mg/kg), Co (0.32 ± 0.00 mg/kg), Mn (36.08 ± 0.04 mg/kg), and Ni (4.43 ± 0.06 mg/kg) were found in the fish scales, suggesting the uptake waterborne elements via dermal exposure. However, all studied elements in the fish muscle were below the national and international food permissible limits. Health risk assessment through the estimation of THQ suggested that long-term exposure of As through fish consumption would cause possible non-carcinogenic risk. Also, the estimation of TR indicated that consumers are susceptible to cancer risks because of Cr and As exposure via fish consumption. Thus, for a developing country like Malaysia, it is recommended to include continuous monitoring of intertidal zones, using potential bioindicators, to assess ecosystem health status and safeguard human health. Additionally, mitigation strategies to address estuaries contamination and efforts to conserve and sustain natural resources should be established.

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Section: Introductionmentioning

confidence: 99%

Elemental Composition and Health Risk Assessment of Giant Mudskipper (Periophthalmodon schlosseri) From the Intertidal Zone of the West Coast of Peninsular Malaysia

et al. 2021

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Effects of anthropogenic activities on the heavy metal levels in the clams and sediments in a tropical river

Wong

Yap

Nulit

et al. 2016

Environ Sci Pollut Res

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The present study aimed to assess the effects of anthropogenic activities on the heavy metal levels in the Langat River by transplantation of Corbicula javanica. In addition, potential ecological risk indexes (PERI) of heavy metals in the surface sediments of the river were also investigated. The correlation analysis revealed that eight metals (As, Co, Cr, Fe, Mn, Ni, Pb and Zn) in total soft tissue (TST) while five metals (As, Cd, Cr, Fe and Mn) in shell have positively and significantly correlation with respective metal concentration in sediment, indicating the clams is a good biomonitor of the metal levels. Based on clustering patterns, the discharge of dam impoundment, agricultural activities and urban domestic waste were identified as three major contributors of the metals in Pangsun, Semenyih and Dusun Tua, and Kajang, respectively. Various geochemical indexes for a single metal pollutant (geoaccumulation index (I ), enrichment factors (EF), contamination factor (C) and ecological risk (Er)) all agreed that Cd, Co, Cr, Cu, Fe, Mn, Ni and Zn are not likely to cause adverse effect to the river ecosystem, but As and Pb could pose a potential ecological risk to the river ecosystem. All indexes (degree of contamination (C ), combined pollution index (CPI) and PERI) showed that overall metal concentrations in the tropical river are still within safe limit. River metal pollution was investigated. Anthropogenic activities were contributors of the metal pollution. Geochemical indexes showed that metals are within the safe limit.

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Preliminary Study of Heavy Metal (Zn, Pb, Cr, Ni) Contaminations in Langat River Estuary, Selangor

Mokhtar

Aris

Praveena

2015

Procedia Environmental Sciences

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Estuaries Ecosystems Health Status – Profiling the Advancements in Metal Analysis

Cited by 3 publications

References 89 publications

Elemental Composition and Health Risk Assessment of Giant Mudskipper (Periophthalmodon schlosseri) From the Intertidal Zone of the West Coast of Peninsular Malaysia

Elemental Composition and Health Risk Assessment of Giant Mudskipper (Periophthalmodon schlosseri) From the Intertidal Zone of the West Coast of Peninsular Malaysia

Effects of anthropogenic activities on the heavy metal levels in the clams and sediments in a tropical river

Preliminary Study of Heavy Metal (Zn, Pb, Cr, Ni) Contaminations in Langat River Estuary, Selangor

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