Distribution of heavy metals in soils and surface sediments along Rizhao coast and environmental assessment

WU Zhen; WANG Songtao; LIU Jinqing; YIN Ping; ZHANG Yong

doi:10.16562/j.cnki.0256-1492.2017031901

2019 Vol. 39, No. 1

Article Contents

Article navigation > Marine Geology & Quaternary Geology > 2019 > 39(1): 59-68

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WU Zhen, WANG Songtao, LIU Jinqing, YIN Ping, ZHANG Yong. Distribution of heavy metals in soils and surface sediments along Rizhao coast and environmental assessment[J]. Marine Geology & Quaternary Geology, 2019, 39(1): 59-68. doi: 10.16562/j.cnki.0256-1492.2017031901

Citation:

WU Zhen, WANG Songtao, LIU Jinqing, YIN Ping, ZHANG Yong. Distribution of heavy metals in soils and surface sediments along Rizhao coast and environmental assessment[J]. Marine Geology & Quaternary Geology, 2019, 39(1): 59-68. doi: 10.16562/j.cnki.0256-1492.2017031901

Distribution of heavy metals in soils and surface sediments along Rizhao coast and environmental assessment

1.
No.4 Exploration Institute of Geology and Mineral Resources, Weifang 261021, China
2.
Key Laboratory of Coastal Zone Geological Environment Protection, Shandong Geology and Mineral Exploration and Development Bureau, Weifang 261021, China
3.
College of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
4.
Qingdao Institute of Marine Geology, China Geological Survey, Qingdao 266071, China

More Information

Corresponding author: LIU Jinqing, jinqingliu@hotmail.com

Received Date: 19 March 2017

Revised Date: 02 May 2017

Publish Date: 28 February 2019

Abstract

Abstract

Contents of Cu, Pb, Zn, Cr, Ni, Cd, As and Hg in soils and surface sediments of Rizhao coast have been analyzed in order to detect the distribution and contamination of these elements. Results show that the high values of heavy metals in soils are mainly distributed in the urban residential land, industrial and mining land, which are obviously from industrial pollutants. The high values of Cu, Zn, Cr, Ni and Hg in the nearshore area are mainly distributed in the areas close to Shijiu Port and Lanshan Port, obviously controlled by particle sizes of bottom sediments. However, the enrichment of Cd, Pb and As in the southeastern area might be related to the adsorption of iron and manganese oxides. In addition, As owes its high content to its high background. Ecological risk assessment suggests that the total degree of pollution and ecological risk of heavy metals contamination in urban areas are high and very high, but medium or low in suburban farmland and nearshore areas.
- heavy metals /
- distribution characteristics /
- pollution source /
- ecological risk assessment /
- Rizhao coast

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References

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