Calcium carbonate
; Ecology
; Lead
; Pollution
; Reefs
; Risk assessment
; Sediments
; Sewage
; Baseline studies
; Coral islands
; Element concentrations
; Gulf of Mannar
; Surface sediments
; Trace elements
; calcium carbonate
; organic matter
; trace element
; trace element
; water pollutant
; baseline survey
; biosphere
; concentration (composition)
; coral reef
; lead
; sediment pollution
; trace element
; Article
; biosphere
; concentration (parameters)
; coral reef
; environmental factor
; India
; nonhuman
; pollution monitoring
; seagrass
; sediment
; surface area
; urban area
; analysis
; animal
; environmental monitoring
; island (geological)
; sediment
; water pollutant
; Gulf of Mannar
; Indian Ocean
; Anthozoa
; Animals
; Coral Reefs
; Environmental Monitoring
; Geologic Sediments
; India
; Islands
; 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:
Extensive field work was conducted in order to assess the sediment pollution level and potential ecological risk on coral reef ecosystem. Thirty three surface sample was collected using grid sampling technique. The calcium carbonate and organic matter were primarily controlled by the distribution of coral rubbles and seagrass meadows. The concentration of trace elements is higher than the crustal average in few locations and the same result was derived from index calculations. However, the significant concentration of lead was observed throughout the study area. The elevated level of lead is probably due to coal incinerating power plants, and confluence of urban runoff from the nearby coastal areas. Based on the sediment pollution index, the majority of the sediments belongs to highly polluted to dangerously polluted category. The ecological risk indicates that the sediments are under low risk to moderate risk category and this result was proved by correlation analysis. � 2017 Elsevier Ltd
Department of Geology, University of Madras, Guindy Campus, Chennai, India; Centre for GeoTechnology, Manonmaniam Sundaranar University, Tirunelveli, India; Department of Geology, Anna University, Chennai, India; Department of Environmental Sciences, University of Kerala, Kariavattom campus, Thiruvananthapuram, India
Recommended Citation:
Krishnakumar S.,Ramasamy S.,Chandrasekar N.,et al. Trace element concentrations in reef associated sediments of Koswari Island, Gulf of Mannar biosphere reserve, southeast coast of India[J]. Marine Pollution Bulletin,2017-01-01,117(2018-01-02)