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《Periodical of Ocean University of China》 2006-01
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Records of Heavy Metals in the Sediments of Zhifu Bay in Recent Years

WU Jian-Zheng~1,YU Xiao-Ling~1,BAO Peng~2,ZHU Long-Hai~1(1.College of Marine Geoscience,Ocean University of China,Qingdao 266003,China;2.Yantai Ocean and Fishery Administration,Yantai 264000,China)  
The concentrations heavy metals of in the marine sediment cores from ZhiFu Bay were measured.Combined with the 210Pb dating results,the contamination history of heavy metals was studied using high resolution records.The results indicated that the concentrations of Cd,Pb and Zn were enriched in Zhifu Bay during the past years.The input of Hg was unstable,and Hg showed an ascending trend in concentration in recent years.The heavy metal pollution in this area can be divided into three stages.The contents of heavy metals increased slowly before 1997,decreased in 1998,and increased rapidly since 1999.Pollutants from nearby cities,construction of ports,ship waste etc influence the environment of Zhifu Bay sverely.The hydrodynamic force in Zhifu Bay is relatively weak,as a result the pollutants diffuse slowly.Hence close attention has to be paid to the water quality in Zhifu Bay.
【CateGory Index】: X834
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