Calcium carbonate
; Floods
; Lead
; River pollution
; Runoff
; Sediments
; Sewage
; Soils
; Surficial sediments
; Urban transportation
; Zinc
; Chennai
; Flood event
; Metal accumulation
; Surface sediments
; Trace element concentrations
; Urban runoff
; Trace elements
; calcium carbonate
; chromium
; cobalt
; copper
; iron
; lead
; nickel
; organic matter
; trace element
; zinc
; heavy metal
; trace element
; water pollutant
; coastal zone
; concentration (composition)
; environmental assessment
; flood
; geoaccumulation
; marine sediment
; runoff
; sediment pollution
; trace element
; Article
; carbon nitrogen ratio
; clay
; coastal waters
; environmental enrichment
; flooding
; India
; pollution monitoring
; pollution transport
; runoff
; sand
; sea pollution
; sediment
; water contamination
; analysis
; chemistry
; environmental monitoring
; river
; sediment
; water pollutant
; Adyar River
; Cooum River
; India
; Tamil Nadu
; Environmental Monitoring
; Floods
; Geologic Sediments
; India
; Metals, Heavy
; Rivers
; Trace Elements
; 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:
The present study was conducted to assess the trace element concentration in marine surface sediments after major flood event of Chennai metropolis, India. Thirty surface samples were collected from off Chennai coast. Trace elements, organic matter, CaCO3, sand-silt-clay and C/N ratios were studied to understand the accumulation dynamics on sediments. The elemental concentration, calcium carbonate and OM distribution suggest that they are derived from urban runoff and transported through Adyar and Cooum Rivers. The enrichment factor reveals that the sediments are enriched by Pb, Cu, Zn, Cr, Co, Ni followed by Fe. The observed Igeo value shows that the samples are contaminated by Pb, Cu and Zn. The elemental concentration of the surface sediments is low when compared to other coastal region except Pb. The elevated level of Pb in the surface sediments is probably due to migration of contaminated urban soil from industrial and transportation sectors into marine environment. � 2016 Elsevier Ltd
Department of Geology, Anna University, Guindy Campus, Chennai, India; Department of Geology, University of Madras, Guindy Campus, Chennai, India; Centre for GeoTechnology, Manonmaniam Sundaranar University, Tirunelveli, India; Department of Applied Geology, University of Madras, Guindy Campus, Chennai, India
Recommended Citation:
Gopal V.,Krishnakumar S.,Simon Peter T.,et al. Assessment of trace element accumulation in surface sediments off Chennai coast after a major flood event[J]. Marine Pollution Bulletin,2017-01-01,114(2)