Distribution characteristics, source analysis and ecological risk assessment of polycyclic aromatic hydrocarbons in surface sediments from the western Honghai Bay of China

Yinghui Liu; Bin Han; Gui Wang; Li Zheng; Zheng Lu

doi:10.1016/j.marpolbul.2024.117001

Distribution characteristics, source analysis and ecological risk assessment of polycyclic aromatic hydrocarbons in surface sediments from the western Honghai Bay of China

Mar Pollut Bull. 2024 Nov:208:117001. doi: 10.1016/j.marpolbul.2024.117001. Epub 2024 Sep 19.

Authors

Yinghui Liu¹, Bin Han², Gui Wang¹, Li Zheng³, Zheng Lu⁴

Affiliations

¹ Qingdao Innovation and Development Center, Harbin Engineering University, Qingdao 266500, China; Marine Bioresource and Environment Research Center, Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China.
² Qingdao Innovation and Development Center, Harbin Engineering University, Qingdao 266500, China; Marine Bioresource and Environment Research Center, Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Ecology and Environmental Science, Qingdao Marine Science and Technology Center, Qingdao 266071, China. Electronic address: hanbin@fio.org.cn.
³ Qingdao Innovation and Development Center, Harbin Engineering University, Qingdao 266500, China; Marine Bioresource and Environment Research Center, Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Ecology and Environmental Science, Qingdao Marine Science and Technology Center, Qingdao 266071, China.
⁴ Qingdao Innovation and Development Center, Harbin Engineering University, Qingdao 266500, China.

PMID: 39303551
DOI: 10.1016/j.marpolbul.2024.117001

Abstract

The distribution characteristics and risk levels of PAHs in surface sediment in the Honghai Bay of China are studied in this paper. The results showed that the concentration of total PAHs in this area ranged from 100.65 ng·g^-1 to 241.31 ng·g^-1, with an average concentration of 158.83 ng·g^-1. The tricyclic PAHs were the main components in the detected PAHs. PAH pollution levels in this region were low and moderate as compared with adjacent areas. Traceability results showed that the sediment PAHs mainly originate from coal and biomass combustion. PAHs concentrations at some stations were above the Environmental Quality Reference Level. The PAHs toxicity and ecological risk level in surface sediments in the area was determined to be low to moderate by toxicity equivalence testing and risk entropy value assessment.

Keywords: Honghai Bay; PAHs; Risk assessment; Sediment; Source.

MeSH terms

Bays* / chemistry
China
Environmental Monitoring*
Geologic Sediments* / chemistry
Polycyclic Aromatic Hydrocarbons* / analysis
Risk Assessment
Water Pollutants, Chemical* / analysis

Substances

Polycyclic Aromatic Hydrocarbons
Water Pollutants, Chemical