Assessment of heavy metal contamination in surface sediments off the Dongying coast, Bohai Sea

Zhen Wu; Yingwei Dong; Rongbo Liu; Longlong Liu; Junfeng Gao; Wei Song; Shengjiang Zhang; Jiandong Qiu

doi:10.1016/j.marpolbul.2022.113826

Assessment of heavy metal contamination in surface sediments off the Dongying coast, Bohai Sea

Mar Pollut Bull. 2022 Jul:180:113826. doi: 10.1016/j.marpolbul.2022.113826. Epub 2022 Jun 10.

Authors

Zhen Wu¹, Yingwei Dong¹, Rongbo Liu², Longlong Liu³, Junfeng Gao⁴, Wei Song², Shengjiang Zhang⁴, Jiandong Qiu⁵

Affiliations

¹ Shandong Provincial No. 4 Institute of Geological and Mineral Survey, Weifang 261021, PR China; Key Laboratory of Coastal Zone Geological Environment Protection, Shandong Geology and Mineral Exploration and Development Bureau, Weifang 261021, PR China.
² Shandong Provincial No. 4 Institute of Geological and Mineral Survey, Weifang 261021, PR China.
³ Yantai Center of Coastal Geological Survey, China Geological Survey, Yantai 264000, PR China. Electronic address: 934596451@qq.com.
⁴ Yantai Center of Coastal Geological Survey, China Geological Survey, Yantai 264000, PR China.
⁵ Qingdao Institute of Marine Geology, China Geological Survey, Qingdao 266071, PR China.

PMID: 35696894
DOI: 10.1016/j.marpolbul.2022.113826

Abstract

In this study, 214 surface sediment samples were collected from the offshore area of the Dongying coast and were analysed for heavy metals; particularly, their concentrations and pollution status were evaluated. The copper (Cu) and chromium (Cr) distributions were similar, their concentrations were the highest in the northeast areas and the Xiaoqing River estuary, where dominated by fine-grained sediments. Higher concentrations of lead (Pb), zinc (Zn), cadmium (Cd), and arsenic (As) were generally found in the offshore area of the study location, and the highest Cd concentration was observed in the Xiaoqing River estuary. The sediments were not polluted by Cu, Pb, Zn, and Cr; they were not polluted or moderately polluted by Cd and As. Results of the principal component analysis indicated that Cu, Pb, Zn, and Cr were derived from natural sources and Cd and As were derived from anthropogenic sources.

Keywords: Contamination assessment; Dongying coast; Heavy metals; Surface sediments.

MeSH terms

Arsenic* / analysis
Cadmium / analysis
China
Chromium / analysis
Environmental Monitoring / methods
Geologic Sediments / analysis
Lead / analysis
Metals, Heavy* / analysis
Risk Assessment
Rivers
Water Pollutants, Chemical* / analysis
Zinc / analysis

Substances

Metals, Heavy
Water Pollutants, Chemical
Cadmium
Chromium
Lead
Zinc
Arsenic