Ecological risks of heavy metals on surficial sediment of Nijhum Dweep (Island), an important biodiversity area of Bangladesh

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F22%3A43904485" target="_blank" >RIV/60076658:12520/22:43904485 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.marpolbul.2022.113688" target="_blank" >https://doi.org/10.1016/j.marpolbul.2022.113688</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.marpolbul.2022.113688" target="_blank" >10.1016/j.marpolbul.2022.113688</a>

Result language

angličtina

Original language name

Ecological risks of heavy metals on surficial sediment of Nijhum Dweep (Island), an important biodiversity area of Bangladesh

Original language description

Ten surficial sediment samples (up to a depth of 3 cm) were randomly collected during the pre-monsoon and analyzed for nine heavy metals using an atomic absorption spectrophotometer (AAS) to assess the distribution, contamination levels, and potential sources of heavy metals. The particle size distribution of the sediments was also investigated using a laser particle size analyzer. The mean concentration (mg/kg) of the analyzed metals followed a decreasing order of Fe (4706.24) &gt; Mn (95.20) &gt; Cu (36.97) &gt; Zn (20.65) &gt; Ni (9.26) &gt; Cr (7.20) &gt; Pb (5.63) &gt; Co (5.52) &gt; Cd (0.29). Surficial sediment of the Island was low to moderately contaminated by Cd and, to a laser extent by Cu in terms of enrichment factor (EF), geo-accumulation index (Igeo), and contamination factor. Ecologically, the Nijhum Dweep area was at low to moderate risk, where Cd was the most potential ecological risk factor. The Pearson correlation analysis revealed a significant positive correlation among Cr, Pb, Zn, Mn, Cd, Fe, Co, Ni, and silt particles, whereas a negative correlation with sand particles. No correlation was found with Cu and other metals except clay particles.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10502 - Oceanography

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Marine Pollution Bulletin

ISSN

0025-326X

e-ISSN

1879-3363

Volume of the periodical

179

Issue of the periodical within the volume

neuvedeno

Country of publishing house

GB - UNITED KINGDOM

Number of pages

10

Pages from-to

nestrankovano

UT code for WoS article

000800620400014

EID of the result in the Scopus database

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