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

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

Author information

1
Department of Marine Environmental Engineering, National Kaohsiung Marine University, Kaohsiung 81157, Taiwan.
2
Department of Marine Environmental Engineering, National Kaohsiung Marine University, Kaohsiung 81157, Taiwan. Electronic address: dong3762@mail.nkmu.edu.tw.

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.

KEYWORDS:

Core sediments; Polycyclic aromatic hydrocarbons (PAHs); Risk assessment; Toxic equivalent (TEQ)

PMID:
24138833
DOI:
10.1016/j.marpolbul.2013.09.037
[Indexed for MEDLINE]
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