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Trace element concentrations and their potential ecological risk in the reef sediments of coral islands, Vembar group of islands, Gulf of Mannar, India.

Abstract：

:The present work was undertaken to assess the impact of trace element concentration and the status of potential ecological risk in the reef sediments of the Vembar group of islands, Gulf of Mannar Marine National Park, India. Totally, 114 reef sediments (surface) were collected from the Vembar group of islands (Nallathanni Island - 36 samples; Upputhanni Island - 48 samples; Puluvinichalli Island-30 samples). The reef sediments are enriched with sand-sized calcareous particles. The calcium carbonate percentage (CaCO3) was primarily controlled by the distribution of coral colonies and available lithogenic grains. The pollution load index (PLI) reveals that the majority of the sediments fall under the unpolluted category. Moreover, the potential ecological risk (PERI) and sediment pollution index (SPI) reveals that the Vembar group of islands fall under the low ecological risk category.

journal_name

Mar Pollut Bull

journal_title

Marine pollution bulletin

authors

Pradhap D,Gandhi KS,Magesh NS,Peter TS,Sadhu C,Silva JD,Godson PS,Krishnakumar S,Saravanan P

doi

10.1016/j.marpolbul.2020.111607

subject

Has Abstract

pub_date

2020-11-01 00:00:00

pages

111607

eissn

0025-326X

issn

1879-3363

pii

S0025-326X(20)30725-6

journal_volume

160

pub_type

杂志文章

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