Polycyclic aromatic hydrocarbons in the sediments of the Yalujiang Estuary, North China

被引：75

作者：

Wu, Y

Zhang, J

Zhu, ZJ

机构：

[1] E China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200062, Peoples R China

[2] Ocean Univ Qingdao, Coll Chem & Chem Engn, Qingdao 266003, Peoples R China

来源：

MARINE POLLUTION BULLETIN | 2003年 / 46卷 / 05期

基金：

中国国家自然科学基金;

关键词：

PAHs; sediment; anthropogenic perturbation; biogenic source; pollution; Yalujiang Estuary;

D O I：

10.1016/S0025-326X(03)00035-3

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Selected polycyclic aromatic hydrocarbons (PAHs) in surface sediments of the Yalujiang Estuary, North China, have been investigated by gas chromatography-mass spectrometry (GC-MS) for flood season (August, 1994) and dry season (May, 1996), respectively. PAHs concentrations from sediments range from 68 to 1500 ng g(-1) depending upon the sample locations. The most contaminated sediment samples are found in the turbidity maximum area for both dry and flood seasons. The source of PAHs is most likely pyrolytic, with minor contributions from petrogenic and diagenetic PAHs for some samples. Perylene is mainly derived from biogenic inputs. and occurs at almost stations. In the Yalujiang Estuary, both biogenic and anthropogenic hydrocarbons are primarily derived form riverine discharges and are accumulated in the mixing zone. The overall levels of PAHs in this study are low compared to other regions and reveal moderate PAHs pollution in the Yalujiang Estuary. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：619 / 625

页数：7

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