Heavy metal assessment in surface sediments off Coromandel Coast of India: Implication on marine pollution

被引：102

作者：

Anbuselvan, N. ^{[1
]}

Nathan, Senthil D. ^{[1
]}

Sridharan, M. ^{[1
]}

机构：

[1] Pondicherry Univ, Dept Earth Sci, Pondicherry 605014, India

来源：

MARINE POLLUTION BULLETIN | 2018年 / 131卷

关键词：

Heavy metals; Pollution; Shelf sediments; Bay of Bengal; India; TRACE-ELEMENT CONTAMINATION; GEO-STATISTICAL ASSESSMENT; SOUTH-EAST-COAST; ORGANIC-MATTER; GRAIN-SIZE; SE COAST; TAMIRAPARANI ESTUARY; CORE SEDIMENTS; NELLORE COAST; ENNORE CREEK;

D O I：

10.1016/j.marpolbul.2018.04.074

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The present study investigates the distribution of heavy metals (Fe, Cd, Co, Cr, Cu, Ni, Zn and Pb) in the surface sediments along the Coromandel Coast of Bay of Bengal as an indicator of marine pollution. Pollution indices such as Contamination factor (CF), Enrichment factor (EF) and Geo-accumulation index (I) were performed to assess the spatial distribution and pollution status of the study area. The heavy metal concentration in the study area is closely associated with grain size and organic matter. Both geoaccumulation index and metal contamination factor indicate that the sediments are free from contamination with regards to the metals Cr and Ni, followed by uncontamination to moderate contamination of Co, Cu and Zn. However, sediments are found to be extremely polluted with respect to Cd and Pb. Factor analysis reveals that the accumulation of these heavy metals in the shelf sediments are due to anthropogenic inputs from the adjacent land area.

引用

页码：712 / 726

页数：15

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