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Enrichment of heavy metals in the inner shelf mud of the East China Sea and its indication to human activity

Chen, Bin ; Fan, Dejiang ; Li, Weiran ; Wang, Liang ; Zhang, Xilin ; Liu, Ming ; Guo, Zhigang

Continental Shelf Research, Nov 1, 2014, Vol.90, p.163(7) [Tạp chí có phản biện]

ISSN: 0278-4343

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  • Nhan đề:
    Enrichment of heavy metals in the inner shelf mud of the East China Sea and its indication to human activity
  • Tác giả: Chen, Bin ; Fan, Dejiang ; Li, Weiran ; Wang, Liang ; Zhang, Xilin ; Liu, Ming ; Guo, Zhigang
  • Chủ đề: Gross Domestic Product ; Pollutants ; Heavy Metals ; Dam Construction ; Sediments (Geology)
  • Là 1 phần của: Continental Shelf Research, Nov 1, 2014, Vol.90, p.163(7)
  • Mô tả: To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.csr.2014.04.016 Byline: Bin Chen, Dejiang Fan, Weiran Li, Liang Wang, Xilin Zhang, Ming Liu, Zhigang Guo Abstract: The Yangtze River Basin, which has a population of 0.4 billion and an economic output accounting for 50% of China's Gross Domestic Product (GDP), is one of the most developed regions in China. With dramatic developments in the economy, large quantities of pollutants have entered the Yangtze River and have eventually been discharged into the East China Sea (ECS), and then most of them were preserved in the inner shelf coastal mud areas of the ECS. The inner shelf costal mud areas of the ECS, with sedimentation rate ranging from 0.8cm/a to 1.2cm/a, are an ideal place to obtain the high-resolution heavy metal record. In this work, two sediment cores collected in the inner shelf of the coastal mud areas of the ECS in 2009 were used to reconstruct historical records of anthropogenic heavy metal input from the Yangtze River Basin. The temporal distribution of enrichment factors (EFs) is in good accordance with social development of Yangtze River Basin. Before the 1930s, the EFs of Pb and Zn are considered as the background level of study area, according to the agricultural country of China in that time. The much higher EFs of Pb and Zn from the 1930s to 1980s were associated with significant improvement of industry of the Yangtze River Basin. After 1983, the dramatical incensement of EFs of Pb and Zn responded to the remarkable economic development of the Yangtze River Basin. Of particular interest, the construction of the Three Gorges Dam (TGD) in 2003 possibly induced a significant increase in the heavy metal levels in the coastal ECS, and the ban on leaded gasoline in China induced a remarkable decrease in Pb levels. Although heavy metal levels have increased since the 1930s, the coastal mud area of the ECS remains under low ecological risk. Author Affiliation: (a) Key Lab of Submarine Geosciences and Technology of the Ministry of Education, Ocean University of China, 238 Songling Road, Qingdao 266100, China (b) Department of Environmental Science and Engineering, Fudan University, Shanghai 200082, China Article History: Received 11 October 2013; Revised 18 April 2014; Accepted 20 April 2014
  • Ngôn ngữ: English
  • Số nhận dạng: ISSN: 0278-4343

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