Characterization and distribution of polycyclic aromatic hydrocarbon in sediments of Haihe River, Tianjin, China |
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Authors: | JIANG Bin ZHENG Hai-long HUANG Guo-qiang DING Hui LI Xin-gang SUO Hong-tu LI Rui |
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Affiliation: | 1. School of Chemical Engineering and Technology,ltanjin University,Tianjin 300072,China 2. Jinzhou Petrochemical Co.Designing Institute,Jinzhou 121001,China |
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Abstract: | In this study sediment samples were collected from 13 sites of Haihe River in Tianjin City,China,sixteen of priority polycyclic aromatic hydrocarbons(PAHs)listed in USEPA were analyzed by means of GC-MS.The total concentrations of PAH ranged from 774.81 to 255371.91 ng/g dw,and two to four rings of PAHs were dominant in sediment samples.Molecular ratios,such as phenanthrene/anthracene.fluoranthene/pyrene and low-molecular-weight PAH/high-molecular-weight PAH,were used to study the possible sources of pollution.It indicated a mixed pattem of parolytic and petrogenic inputs of PAHs in sediments in Haihe River.The petrogenic PAHs may be mainly derived from the leakage of refined products,e.g.,gasoline,diesel fuel and fuel oil vehicle traffics or gas stations from urban area.The pyrolytic PAHs might be from the discharge of industrial wastewater and the emission of atmospheric particles from petrochemical factories.In addition.the levels of PAHs in the urban and industrial areas are far beyond the values reported from other rivers and marine systems reported.This situation may be due to polluted discharging from some petrochemical industrial manufactories and worse traffiC conditions in Tianjin. |
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Keywords: | PAHs Haihe River sediments Tianjin Haihe River sediments aromatic hydrocarbon distribution Characterization situation discharging traffiC conditions Tianjin levels urban area industrial wastewater values marine systems addition discharge emission atmospheric particles |
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