Abstract
The particle size distribution characteristics of sediments and the concentrations of heavy metals in Jiaozhou Bay were investigated in this study. The average concentrations of Cu, Pb, Zn, Cr, Cd, Hg and As were 36.88, 29.60, 82.08, 77.48, 0.083, 0.048 and 11.00 mg/kg, respectively. The heavy metal concentrations were highest in the eastern sediments, followed by those at the top of the bay, and the lowest concentrations were observed in the central region. Overall, a decreasing trend from the center of the bay to the periphery was observed. Additionally, the distribution of heavy metals in sediments was not completely controlled by sediment particle size. The degree of heavy metal contamination was evaluated using the geoaccumulation index and Hakanson’s method. The results revealed that the level of heavy metal pollution in the sediments was relatively low and that the main pollution elements were Cu and Hg. In addition, the sediments are associated with various levels of potential ecological risk due to the high pollution levels of Hg and Cd.
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Funding for this research was provided by the National Key Research and Development Project (2016YFC0402801) and the National Basic Project (2014FY210600) of the Ministry of Science and Technology, People's Republic of China.
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Zhuang, H., Xu, S., Gao, M. et al. Heavy Metal Pollution Characteristics in the Modern Sedimentary Environment of Northern Jiaozhou Bay, China. Bull Environ Contam Toxicol 101, 473–478 (2018). https://doi.org/10.1007/s00128-018-2439-9
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DOI: https://doi.org/10.1007/s00128-018-2439-9