期刊
MARINE POLLUTION BULLETIN
卷 146, 期 -, 页码 427-434出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2019.06.080
关键词
Heavy metal; Beibu Gulf; Seawater; Sediments; Contamination assessment
资金
- National Key Research and Development Program [2016YFC1401403]
- Guangdong Natural Science Foundation of China [2016A030312004]
- National Natural Science Foundation of China [41566001]
- Guangxi Natural Science Foundation of China [2018GXNSFDA281031]
- Guangxi Science and Technology Major Project [Guike AA18118025]
- International Science and Technology Cooperation Programme [GASI-IPOVAI-04]
- Project of Enhancing School with Innovation of Guangdong Ocean University [GDOU2016050260]
To study the impact of rapid industrialization and urbanization in Guangxi Province on the coastal environment in recent years, seven metals (Hg, Cu, Pb, Cd, Cr, Zn and As) were investigated in the surface seawater and sediments of the northern Beibu Gulf. The levels of the metals were lower than in other regions in China, but Hg, Cu and Cd showed a significant increasing trend in both seawater and sediments over the past 20 years. Higher levels were consistently observed in the nearshore area, particularly in the northwest, which may be related to the rapid industrial development in coastal areas. Correlation and principal component analyses suggested that both terrestrial inputs and biological processes influenced the distribution of metals. In addition, the higher risk observed for Hg and Cu may be largely influenced by the increasing trend in these metals in the Beibu Gulf.
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