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- W2380348525 abstract "The heavy metal is a main kind of contaminant in marine sediment.Their accumulation and release can cause the inverse impacts on aquatic organism and human health.This study firstly analyzed the content characteristics and spatial distribution of heavy metals in the surface sediment retrieved from the near-shore area of Beihai,Guangxi.Their polluted degree and potential ecological risk were assessed through the geological accumulation index and potential ecological risk index.Finally,the sources of the heavy metals were determined by the method of principle component analysis.The results showed that the variations of heavy metals' content in the surface sediment are generally small compared with previous researches.Only Cr and As content exceed the second and first guidelines prescribed in the quality standard of marine sediment.Strong correlations exist among Pb,Zn and Hg.The content is relatively higher in the north-west and east central part of the study area for most heavy metals,which is obviously caused by the land source input and river influx form the north.The pollution degree and potential ecological risk of heavy metals in study area are both low in general.The organism contribution and adsorption from sea water are the dominant sources of Zn,Pb,Cd,As and Hg in surface sediment of the study area,but the sediment itself maybe the main origin for Cu and Cr." @default.
- W2380348525 created "2016-06-24" @default.
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- W2380348525 date "2010-01-01" @default.
- W2380348525 modified "2023-09-28" @default.
- W2380348525 title "Spatial distribution and source of heavy metals in surface sediment from near-shore area of Beihai,Guangxi" @default.
- W2380348525 hasPublicationYear "2010" @default.
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