Screening level of PAHs in sediment core from Lake Hongfeng, Southwest China.

Archives of Environmental Contamination and Toxicology
Jian-Yang GuoBi-Xian Mai

Abstract

Using data from a 25-year retrospective of polycyclic aromatic hydrocarbons (PAHs) in sediment core from Lake Hongfeng, Southwest China, their possible sources and potential toxicologic significance were investigated. The total PAH concentrations (16 priority PAHs as proposed by the United States Environmental Protection Agency) in sediments ranged from 2936.1 to 5282.3 ng/g and gradually increased from the analyzed deeper sediments to surface sediments. PAHs were dominated by low molecular-weight components, especially phenanthrene (PHEN) and fluorene (FLU). However, a significantly increased number of high molecular-weight (HMW) PAHs was found in upper segments. The temporal trends of individual PAH species suggest that there may have been a change in energy use from low- to high-temperature combustion, especially after approximately 2001. PAH input to Lake Hongfeng originated mainly from domestic coal combustion and biomass burning, whereas fuel combustion characteristics have also been found in recent years. Sediment-quality assessment implied that potential adverse biologic impact could be a probability for most low-ring PAHs (including naphthalene, acenaphthylene, acenaphthylene, FLU, PHEN, and anthracene). Nevertheless, ...Continue Reading

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Citations

Feb 23, 2013·Environmental Science and Pollution Research International·Jian-yang GuoJohn P Giesy
Aug 25, 2015·Environmental Science and Pollution Research International·Sheng YuYi-Hu Chen
Aug 4, 2015·Environmental Science and Pollution Research International·Behnam KeshavarziHelena Kaabi
May 12, 2015·Marine Pollution Bulletin·Begoña Pérez-FernándezJesica Bargiela
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Oct 26, 2016·Archives of Environmental Contamination and Toxicology·Begoña Pérez-FernándezJesica Bargiela
Oct 26, 2018·Environmental Science. Processes & Impacts·Jingjing Du, Chuanyong Jing
Apr 30, 2017·Bulletin of Environmental Contamination and Toxicology·Panpan SunYanhua Wang
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Dec 3, 2011·Environmental Monitoring and Assessment·Guanghui GuoMing Chang
Sep 19, 2017·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Jing CaiZhiqiang Yu

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