Distribution and seasonal changes of polycyclic aromatic hydrocarbons (PAHs) in surface water from Humen tidal channel

YANG Qing-shu; OU Su-ying; XIE Ping; MAI Bi-xian; FU Jia-mo; SHENG Guo-ying

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Article Navigation > Haiyang Xuebao > 2004 > 26(6): 37-48

YANG Qing-shu, OU Su-ying, XIE Ping, MAI Bi-xian, FU Jia-mo, SHENG Guo-ying. Distribution and seasonal changes of polycyclic aromatic hydrocarbons (PAHs) in surface water from Humen tidal channel[J]. Haiyang Xuebao, 2004, 26(6): 37-48.

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Distribution and seasonal changes of polycyclic aromatic hydrocarbons (PAHs) in surface water from Humen tidal channel

1.
Institute of Estuarine and Coastal Research, Zhongshan University, Guangzhou 510275, China;State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
2.
Institute of Estuarine and Coastal Research, Zhongshan University, Guangzhou 510275, China
3.
State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China

Received Date: 2003-06-20
Rev Recd Date: 2003-11-03

Abstract

Abstract

Six surface water samples from the Humen tidal channel were collected in 2001 and filtered by GF/F glass fiber filter.Polycyclic aromatic hydrocarbons(PAHs),including parent,alkylated and sulfur/oxygenated PAHs were identified and measured based on USEPA 8000 series methods and under quality assurance and quality control (QA/QC).The spatial and temporal distribution of particulate and dissolved PAHs during both low flow and high flow seasons was investigated.Total PAHs concentrations vary from 11 360 to 34 338 ng/dm³ and 786~2 098 ng/dm³ in low flow season and high flow season respectively,and the 16 PAHs concetrations vary from 6 559 to 20 031 ng/dm³ and 223 to 614 ng/dm³ in low flow season and high flow season respectively.The dominated compounds are 2-ring PAHs,which are up to 95% and exist mainly in dissolved phase in low flow season.PAH concentrations in low flow season are one order of magnitude higher than those in high flow season.The increase of high molecular weight PAHs and elevated concentrations of particulate phase PAHs were found in the high flow season.
- polycyclic aromatic hydrocarbons(PAHs),
- water sample,
- seasonal changes,
- Humen tidal channel

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