Distribution, sources and ecological risk assessment of PAHs in surface sediments from Guan River Estuary, China

Marine Pollution Bulletin
Xinran HeYuqin Ma

Abstract

The contamination of surface sediments in Guan River Estuary, China, by polycyclic aromatic hydrocarbons (PAHs) has been fully investigated. Total concentrations of 21 PAHs ranged from 90 to 218 ng/g with an average of 132.7 ng/g, which is relatively low in comparison with other estuaries around the world. PAH concentrations appeared to be positively correlated with clay content and negatively correlated with sediment grain size. Source identification implied that the PAHs originated mainly from pyrolytic sources. However, source patterns may be continuously changed to a petrogenic origin due to the heavy ship traffic and continuous discharge of oily sewage in this area. The PAH levels were also compared with international Sediments Quality Guidelines and Sediments Quality Criteria, and the results indicated low negative effects for most individual PAHs. However, toxic effects related to FLO would occur occasionally in most locations in the estuary.

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Citations

Jan 22, 2015·Environmental Science and Pollution Research International·Mehrzad KeshavarzifardShuhaimi Mustafa
Oct 13, 2016·Marine Pollution Bulletin·A RamziN Chandramohanakumar
Dec 31, 2017·Archives of Environmental Contamination and Toxicology·Yinhai LangChunmiao Zhu
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Apr 30, 2017·Bulletin of Environmental Contamination and Toxicology·Panpan SunYanhua Wang
Apr 1, 2020·Environmental Science and Pollution Research International·Hoang Thi Thanh ThuyDo Xuan Huy
Mar 9, 2019·Bulletin of Environmental Contamination and Toxicology·Jiamei ZhangRuoyu Sun
Apr 1, 2018·Environmental Geochemistry and Health·Rakesh Kumar SahuYasmeen Fatima Pervez
Jun 3, 2017·Environmental Geochemistry and Health·Kun BaoBo Meng
Dec 25, 2017·The Science of the Total Environment·Roxanny Helen de Arruda-SantosEliete Zanardi-Lamardo
May 17, 2021·Ecotoxicology and Environmental Safety·Chijioke OlisahGletwyn Rubidge
Mar 18, 2022·Ecotoxicology and Environmental Safety·Nobuo SuzukiKazuichi Hayakawa

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