The study of leaching characteristic of arsenic (As) from sediments in Jakarta Bay and bioaccumulation of arsenic in forms of single substance and mixtures by Cyprinus carpio L.

Budiawan,; Asrini, Mariska Winda; Pasaribu, Daniel Jeffry

doi:10.1063/1.5082424

Cited by 1 publication

(1 citation statement)

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“…Streams are used for numerous purposes including urban and industrial water supply, irrigation, and commercial navigation. In recent times, contamination of these aquatic ecosystems by heavy metals have received much attention due to the quantity released into the ecosystem, its toxicity and bioaccumulative nature (Budiawan et al, 2018;Zahran et al, 2015;Kanchana et al, 2014;Osma et al, 2013;Qu et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Heavy Metal Loading in Surface Sediments along the Kawere Stream, Tarkwa, Ghana

Ndur¹,

Nyarko²,

Quaicoe³

et al. 2020

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Sediment contamination by heavy metals resulting from anthropogenic activities is increasingly becoming a global concern due to the risk it poses to human well-being and ecological integrity at large. The purpose of this study was to assess the heavy metals loading in sediment along the Kawere stream. Ten sediment samples were collected, acid digested and analysed for copper (Cu), lead (Pb), cadmium (Cd), manganese (Mn), zinc (Zn), nickel (Ni), chromium (Cr), cobalt (Co) and iron (Fe) using a Varian AA240FS Atomic Absorption Spectrometer (AAS). The Australian and New Zealand Environment and Conservation Council (ANZECC) guidelines for freshwater sediment quality was used as the benchmark against which the measured metal concentrations were compared. Nemerow’s pollution and potential ecological risk indices were used to evaluate the pollution status and ecological risk levels of the heavy metals in the stream. The results obtained indicated that, except Cu which exceeded the ANZECC trigger value of 65 mg/kg at three sampling sites (K01=171.29 mg/kg, K05=170.83 mg/kg and K07=113.31 mg/kg), all other measured heavy metals concentrations were below their corresponding ANZECC values. Heavy metal pollution assessment showed that three samples (K01, K05 and K07) were slightly polluted, suggesting the likelihood of posing a health threat to the aquatic organisms and humans. Calculated Ecological Risk Index (RI) ranged from 3.229 to 19.750 (RI < 150), representing a low ecological risk. As such, the metals, Cu, Ni, Cd, Pb, Cr, and Zn pose a low ecological risk to the aquatic ecosystem. Although the ecological risk is low based on the current results, constant monitoring of the stream quality is recommended due to the increasing human activities along the stream as well as the sediments ability to accumulate and remobilise heavy metals back into the water column and possibly transferring them through the food chain. Keywords: Heavy Metals, Sediment, Ecological Risk Assessment, Pollution, Stream

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Section: Introductionmentioning

confidence: 99%