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首页> 外文期刊>Journal of environmental monitoring: JEM >Composition and source apportionment of PAHs in sediments at river mouths and channel in Kaohsiung Harbor, Taiwan
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Composition and source apportionment of PAHs in sediments at river mouths and channel in Kaohsiung Harbor, Taiwan

机译：台湾高雄港河口及航道沉积物中多环芳烃的组成及来源解析

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摘要

Fifty-eight sediment samples were collected in 2009 from the bottom of river mouths near Kaohsiung Harbor (Taiwan) and the harbor channel for the analyses of polycyclic aromatic hydrocarbons (PAHs) using gas chromatography-mass spectrometry (GC-MS). Concentrations of total PAHs varied from 39 to 30521 ng g ~(-1) (dry weight); samples collected from the mouths of Love River, Canon River, Jen-Gen River, and Salt River showed the highest PAHs concentrations. This indicates that the major sources of sediment PAHs come from those polluted urban rivers and the harbor channel. In samples collected from the Salt River mouth, approximately 43% of the PAHs are identified as PAHs with 2 or 3 rings. However, samples collected from other locations contain predominantly PAHs with 4 rings (32 to 42%) or 5 and 6 rings (36 to 44%). Emissions from traffic-related sources and waste incineration contribute to the majority of PAHs found in most channel and river mouth sediments. However, coal/oil combustion is the main cause of high concentrations of PAHs observed in the Salt River mouth sediments. Principal component analyses with multivariate linear regression (PCA/MLR) have been used to further quantify the source contributions, and the results show that the contributions of coal/oil combustion, traffic-related and waste incineration are 37%, 33% and 30%, respectively.
机译：2009年，从台湾高雄港和海港航道附近的河口底部收集了58个沉积物样品，用气相色谱-质谱法（GC-MS）分析多环芳烃（PAHs）。多环芳烃的总含量从39到30521 ng g〜（-1）（干重）不等。从洛夫河，佳能河，简根河和盐河河口收集的样品显示出最高的PAHs浓度。这表明沉积物多环芳烃的主要来源来自那些被污染的城市河流和港口通道。在从盐河河口收集的样品中，大约43％的PAH被鉴定为带有2或3个环的PAH。但是，从其他位置收集的样品中主要含有PAH，其具有4个环（32％至42％）或5和6个环（36％至44％）。与交通有关的来源和废物焚烧的排放造成了大多数航道和河口沉积物中发现的大多数多环芳烃。但是，煤/油燃烧是盐河口沉积物中高浓度PAHs的主要原因。已使用多元线性回归（PCA / MLR）进行主成分分析来进一步量化源贡献，结果表明，煤/油燃烧，交通相关和废物焚烧的贡献分别为37％，33％和30％ ， 分别。

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