Biogeochemistry
; Biological materials
; Calcium carbonate
; Correlation methods
; Ecosystems
; Heavy metals
; Lead
; Manganese
; Marine pollution
; Nickel
; Organic compounds
; Pollution
; Sediments
; Surficial sediments
; Contamination factors
; Enrichment factors
; Geo-accumulation index
; Geochemical assessments
; Heavy metals pollution
; Pollution index
; Pollution load indices
; Southeast coast of India
; Estuaries
; calcium carbonate
; chromium
; cobalt
; copper
; ferric hydroxide
; heavy metal
; iron
; lead
; manganese
; manganese derivative
; manganese oxyhydroxide
; nickel
; organic matter
; unclassified drug
; zinc
; heavy metal
; water pollutant
; anthropogenic source
; calcium carbonate
; enrichment
; estuarine ecosystem
; estuarine sediment
; geoaccumulation index
; geochemistry
; heavy metal
; organic matter
; sediment pollution
; texture
; Article
; concentration (parameters)
; contamination factor
; ecosystem
; enrichment factor
; estuarine ecosystem
; estuary
; geo accumulation index
; geochemical analysis
; India
; physical parameters
; pollution
; pollution and pollution related phenomena
; pollution load index
; sediment
; analysis
; chemistry
; environmental monitoring
; sediment
; water pollutant
; Coleroon Estuary
; India
; Tamil Nadu
; Vellar Estuary
; Environmental Monitoring
; Estuaries
; Geologic Sediments
; India
; Metals, Heavy
; Water Pollutants, Chemical
Scopus学科分类:
Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要:
Surface sediments were collected from Vellar and Coleroon estuaries for determine sediment texture, calcium carbonate, organic matter and heavy metals. Pollution indices such as pollution load index (PLI), contamination factor (CF), enrichment factor (EF) and geo-accumulation index (Igeo) were done for this study to know the level of heavy metals pollution in the estuarine ecosystem. Pearson correlation matrix and factor were used to assess the relationship and source of heavy metals in the estuarine sediments. The results of PLI values reveal that the study area was polluted by all the heavy metals. The calculated values of CF and Igeofollowed the decreasing order Cu�>�Ni�>�Pb�>�Co�>�Cr�>�Zn�>�Mn�>�Fe and illustrate that Cu, Ni and Pb are contaminated due to anthropogenic sources in both estuaries. Correlation and factor analysis suggest that Fe[sbnd]Mn oxyhydroxides, organic matter and fine particles are responsible for high concentration of heavy metals. � 2016 Elsevier Ltd
Climate Change and Environmental Research Group (CERG), Department of Applied Geology, University of Madras, Chennai, Tamil Nadu, India
Recommended Citation:
Nethaji S.,Kalaivanan R.,Arya Viswam,et al. Geochemical assessment of heavy metals pollution in surface sediments of Vellar and Coleroon estuaries, southeast coast of India[J]. Marine Pollution Bulletin,2017-01-01,115(2018-01-02)