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Partitioning and source diagnostics of polycyclic aromatic hydrocarbons in rivers in Tianjin, China

被引：85
|
作者：
Shi, Z.
Tao, S. [1 ]
Pan, B.
Liu, W. X.
Shen, W. R.
机构：
[1] Peking Univ, Coll Environm Sci, Beijing 100871, Peoples R China
[2] Tianjin Environm Protect Bur, Tianjin 300191, Peoples R China
来源：
ENVIRONMENTAL POLLUTION | 2007年 / 146卷 / 02期
基金：
中国国家自然科学基金;
关键词：
polycyclic aromatic hydrocarbons; river; organic carbon; partitioning; source diagnostics;
D O I：
10.1016/j.envpol.2006.07.009
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Water, suspended particulate matter (SPM), and sediment samples were collected from ten rivers in Tianjin and analyzed for 76 polycyclic aromatic hydrocarbons (PAHs), dissolved organic carbon (DOC), particulate organic carbon (POC) in SPM and total organic carbon (TOC) in sediment. The behavior and fate of PAHs influenced by these parameters were examined. Generally, organic carbon was the primary factor controlling the behavior of the 16 PAH species. Partitioning of PAHs between SPM and water phase was studied, and Koc for some PAH species were found to be significantly higher than the predicted values. The source of PAHs contamination was diagnosed by using PAH isomer ratios. Coal combustion was identified to be a long-term and prevailing contamination source for sediment, while sewage/wastewater source could reasonably explain a short-term PAHs contamination of SPM. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：492 / 500
页数：9
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