Levels, composition profiles and sources of polycyclic aromatic hydrocarbons in surface sediments from Nan'ao Island, a representative mariculture base in South China

文献类型： 外文期刊

第一作者： Gu, Yang-Guang

作者： Gu, Yang-Guang;Lin, Qin;Lu, Teng-Teng;Ke, Chang-Liang;Sun, Run-Xia;Du, Fei-Yan;Gu, Yang-Guang;Lin, Qin;Lu, Teng-Teng;Ke, Chang-Liang;Sun, Run-Xia;Du, Fei-Yan;Gu, Yang-Guang;Lin, Qin;Lu, Teng-Teng;Ke, Chang-Liang;Sun, Run-Xia;Du, Fei-Yan;Lu, Teng-Teng

作者机构：

关键词： Mariculture;PAHs;Sediments;Risk assessment;Baisha Bay

期刊名称：MARINE POLLUTION BULLETIN （ 影响因子：5.553； 五年影响因子：5.907 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Levels, composition profiles and sources of 16 polycyclic aromatic hydrocarbons (PAHs) in surface sediments from Nan'ao Island, one of the largest mariculture bases in South China were investigated. The total PAHs concentrations ranged from 265.49 to 951.27 ng/g (dry weight) with a mean of 515.90 ng/g, and seven possible carcinogenic PAHs accounted for 76.94% of total PAHs. Among various mariculture sections, the highest PAHs level was found in the large seaweed culture; while the lowest concentration was detected in the abandoned culture. The composition of PAHs was characterized by low molecular weight PAHs, and Phe Ant and Pyr were the dominant constituent. PAHs may be mainly originated from petroleum and combustion of biomass and coal. Risk assessments suggested that the probability of adverse effect was lower than 25% and PAHs exposure was moderately carcinogenic.

分类号： X

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