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台湾高雄港河口沉积物岩芯中多环芳烃的垂直分布、来源及等效毒性

Vertical profile, sources, and equivalent toxicity of polycyclic aromatic hydrocarbons in sediment cores from the river mouths of Kaohsiung Harbor, Taiwan.

作者信息

Dong Cheng-Di, Chen Chih-Feng, Chen Chiu-Wen

机构信息

Department of Marine Environmental Engineering, National Kaohsiung Marine University, Kaohsiung 81157, Taiwan.

Department of Marine Environmental Engineering, National Kaohsiung Marine University, Kaohsiung 81157, Taiwan.

出版信息

Mar Pollut Bull. 2014 Aug 30;85(2):665-71. doi: 10.1016/j.marpolbul.2013.09.037. Epub 2013 Oct 16.

Abstract

Six sediment cores collected at four contaminated river mouths and two harbor entrances in Kaohsiung Harbor (Taiwan) were analyzed to evaluate the sources and potential toxicity of polycyclic aromatic hydrocarbons (PAHs). PAHs presented the wide variations ranging from 369±656 to 33,772±14,378 ng g(-1) at the six sampling sites. The composition of PAHs presented a uniform profile reflecting the importance of atmospheric input from vehicle exhausts or coal combustion in the river mouths. PAHs diagnostic ratios indicated a stronger influence of coal combustion in the Salt River mouth and the prevalence of petroleum combustion and mixed sources in the other rivers and harbor entrances. PAHs toxicity assessment using the mean effect range-median quotient (m-ERM-q: 0.011-1.804), benzo[a]pyrene-toxicity equivalent (TEQ(carc): 22-2819 ng TEQ g(-1)), and dioxin-toxicity equivalent (TEQ(fish): 37-5129 pg TEQ g(-1)) identified the Salt River mouth near the industrial area of the harbor as the most affected area.

摘要

对在高雄港(台湾)四个受污染的河口和两个港口入口处采集的六个沉积物岩芯进行了分析,以评估多环芳烃(PAHs)的来源和潜在毒性。六个采样点的PAHs含量差异很大,范围从369±656到33,772±14,378 ng g(-1)。PAHs的组成呈现出一致的特征,反映了河口处来自汽车尾气或煤炭燃烧的大气输入的重要性。PAHs诊断比率表明,盐河口受煤炭燃烧的影响更强,而其他河流和港口入口处则以石油燃烧和混合源为主。使用平均效应范围-中位数商(m-ERM-q:0.011 - 1.804)、苯并[a]芘毒性当量(TEQ(carc):22 - 2819 ng TEQ g(-1))和二恶英毒性当量(TEQ(fish):37 - 5129 pg TEQ g(-1))对PAHs进行毒性评估,确定港口工业区附近的盐河口是受影响最严重的区域。

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