Characterization, sources, and potential risk assessment of PAHs in surface sediments from nearshore and farther shore zones of the Yangtze estuary, China.

Environmental Science and Pollution Research International
Ying WangYaxin Chen

Abstract

The assessment of polycyclic aromatic hydrocarbons (PAHs) contamination in surface sediments from the Yangtze estuary which is a representative area affected by anthropogenic activity (rapid industrialization, high-population density, and construction of dams upstream) in the world was systematically conducted. Fifty-one samples were analyzed by high-performance liquid chromatography (HPLC). The ∑PAHs in all sediments varied from 76.9 to 2,936.8 ng g(-1). Compared with other estuaries in the world, the PAH levels in the Yangtze estuary are low to moderate. Phenanthrene, acenaphthylene, fluoranthene, and pyrene were relatively abundant. The ∑PAH levels and composition varied obviously in different estuarine zones due to different sources. The highest ∑PAHs concentration was observed in the nearshore of Chongming Island. The PAH composition showed that four to six ring PAHs were mainly found in the nearshore areas, while two to three ring PAHs were in the farther shore zones. The PAHs in the Yangtze estuary were derived primarily from combustion sources. A mixture of petroleum combustion and biomass combustion mainly from coal combustion and vehicle emission was the main source of PAHs from the nearshore areas, while the spill, v...Continue Reading

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Citations

Apr 24, 2013·Environmental Science and Pollution Research International·Tilman FloehrHenner Hollert
Jul 12, 2013·Environmental Science and Pollution Research International·H Hollert
Jun 29, 2013·Environmental Science and Pollution Research International·Shou ZhaoZhenyao Shen
Jan 22, 2015·Environmental Science and Pollution Research International·Mehrzad KeshavarzifardShuhaimi Mustafa
Jun 27, 2015·Environmental Science. Processes & Impacts·Ying WangJohn C Crittenden
Nov 8, 2015·Environmental Science and Pollution Research International·Qian LiLingling Wu
Mar 29, 2021·The Science of the Total Environment·Yinjie YangYing Shao

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