Occurrence and source of polycyclic aromatic hydrocarbon (PAHs) in the surficial sediment of the Bohai Sea
GUO Wen1, XUE Wen-ping1, YAO Wen-jun1, XU Heng-zhen2, LIN Zhong-sheng2, YAO Zi-wei2, MA Xin-dong2
1. School of Chemistry Engineering & Light Industry, Dalian Polytechnic University, Dalian 116034, China;
2. State Oceanic Administration Key Laboratory for Ecological Environment in Coastal Areas, National Marine Environmental Monitoring Center, Dalian 116023, China
Abstract：The concentration level,spatial distribution and source of polycyclic aromatic hydrocarbon (PAHs) in the surficialsediments of the Bohai Sea were investigated.The results indicated that the concentrations oftotal PAHs (∑PAHs) ranged from 21.9×10-9 to 586.4×10-9(dry weight,dw) with the mean value of 175.1×10-9 dw.The concentration in sediments of the Bohai Bay with the mean value of 430.9×10-9 dw was significantly higher than those of the other areas.Significantly positive correlation between ∑PAHs and TOCs(p<0.05)implied thatthe organic contentwas one importantfactor affecting the migration and distribution of PAHs in seawater.The characteristic distribution of different rings indicated that PAHs in the Bohaiseawas mainly from the combustionof petroleum and related products,coal and biomass.
GUO Wen,XUE Wen-ping,YAO Wen-jun et al. Occurrence and source of polycyclic aromatic hydrocarbon (PAHs) in the surficial sediment of the Bohai Sea[J]. Marine Environmental Science, 2015, 34(3): 330-336.
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