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《Acta Sedimentologica Sinica》 2008-01
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Environmental and Sedimentological Survey along the Coast of Bohai Gulf

LI Ren-wei LI Yuan(Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029)  
The grain size and contents of heavy metals,As,P and N of sediments have been analyzed for the environmental and sedimentological survey along the coast of Bohai Gulf.The contents of heavy metals and As in the surficial sediments less than 62.5μm are varied greatly.Average value of Hg,Cd,Cu,Ni,Pb,Zn,Cr,Mn and As(μg/g) along the coast of Tianjin is 0.15,0.19,31.6,46.5,29,112,82,1008 and 16.2,respectively.They are 0.08,0.44,24.2,34.1,29,96,64.4,976 and 13.1 along the coast of Liaoning Province,and 0.03,0.13,20.3,28.7,22.7,58,63,888 and 8.5 along the coast of Hebei Province.The high values of Hg,Cr and As(μg/g) along the coast of Tianjin are 0.26~0.35,83.4~94.9 and 23.3.It is found that the contents of Hg,Cd and Zn in the sediment of a local site of Hebei Province are high up to 3.12,2.01 and 602(μg/g),respectively.The results described above reflect that the sediments along the coast of Bohai Gulf have been contaminated by heavy metals and As in a different degree.Contents of TN and TP(mg/g) in the sediment of the Hg,Cd,Zn-heavy contaminated site of Hebei Province are high up to 6.6 and 1.5,so that it is need further to study the toxic effect on benthic organisms.
【Fund】: 国家自然科学基金项目(批准号:49872044)
【CateGory Index】: X508
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