DOI: 10.1016/j.marpolbul.2017.08.042
Scopus记录号: 2-s2.0-85027980249
论文题名: Geospatial risk assessment and trace element concentration in reef associated sediments, northern part of Gulf of Mannar biosphere reserve, Southeast Coast of India
作者: Krishnakumar S. ; Ramasamy S. ; Simon Peter T. ; Godson P.S. ; Chandrasekar N. ; Magesh N.S.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2017
卷: 125, 期: 2018-01-02 起始页码: 522
结束页码: 529
语种: 英语
英文关键词: Coral reef ecosystem protection
; Geospatial risk assessment
; Gulf of Mannar
; Sediment pollution index
; Trace elements
Scopus关键词: Biospherics
; Ecology
; Ecosystems
; Forestry
; Lead
; Manganese
; Reefs
; River pollution
; Sediments
; Submarine geology
; Trace elements
; Coral reef ecosystems
; Geo-spatial
; Gulf of Mannar
; Polluted sediments
; Potential ecological risk
; Sediment pollution
; Southeast coast of India
; Trace element concentrations
; Risk assessment
; calcium carbonate
; iron
; lead
; manganese
; organic matter
; trace element
; biosphere
; calcium carbonate
; concentration (composition)
; coral reef
; ecosystem response
; geoaccumulation
; organic matter
; risk assessment
; sediment pollution
; spatial analysis
; toxicity
; trace element
; Article
; atmospheric transport
; bioaccumulation
; biosphere reserve
; controlled study
; coral reef
; ecotoxicity
; environmental aspects and related phenomena
; environmental impact assessment
; geo accumulation
; geo accumulation index
; geospatial risk assessment
; Gulf stream
; India
; mangrove
; marine environment
; mathematical analysis
; riverine input
; sediment
; sediment pollution index
; water contamination
; Gulf of Mannar
; Indian Ocean
; Anthozoa
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Fifty two surface sediments were collected from the northern part of the Gulf of Mannar biosphere reserve to assess the geospatial risk of sediments. We found that distribution of organic matter and CaCO3 distributions were locally controlled by the mangrove litters and fragmented coral debris. In addition, Fe and Mn concentrations in the marine sediments were probably supplied through the riverine input and natural processes. The Geo-accumulation of elements fall under the uncontaminated category except Pb. Lead show a wide range of contamination from uncontaminated-moderately contaminated to extremely contaminated category. The sediment toxicity level of the elements revealed that the majority of the sediments fall under moderately to highly polluted sediments (23.07–28.84%). The grades of potential ecological risk suggest that predominant sediments fall under low to moderate risk category (55.7–32.7%). The accumulation level of trace elements clearly suggests that the coral reef ecosystem is under low to moderate risk. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/87384
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: Department of Geology, University of Madras, Guindy campus, Chennai, India; Centre for GeoTechnology, Manonmaniam Sundaranar University, Tirunelveli, India; Department of Environmental Sciences, University of Kerala, Kariavattom campus, Thiruvananthapuram, India; Centre for GeoTechnology, Manonmaniam Sundaranar University, Tirunelveli, India; Department of Geology, Anna University, Chennai, India
Recommended Citation:
Krishnakumar S.,Ramasamy S.,Simon Peter T.,et al. Geospatial risk assessment and trace element concentration in reef associated sediments, northern part of Gulf of Mannar biosphere reserve, Southeast Coast of India[J]. Marine Pollution Bulletin,2017-01-01,125(2018-01-02)