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  • Title: [Spatial distribution and risk assessment of polycyclic aromatic hydrocarbons in partial surface sediments of Liaohe River].
    Author: Wu JY, Liu ZT, Zhou JL, Gao F.
    Journal: Huan Jing Ke Xue; 2012 Dec; 33(12):4244-50. PubMed ID: 23379148.
    Abstract:
    Nineteen surface sediment samples were collected from Liaohe River and analysed for polycyclic aromatic hydrocarbons (PAHs) with GC-MS. The concentrations of 15 detected PAH compounds ranged from 123.5 to 21 233.4 ng x g(-1) in dry season with the average concentration was 3208.1 ng x g(-1); and were 37.9 to 9014.0 ng x g(-1) in wet season with the average concentration was 1612.0 ng x g(-1). The isomeric ratio method using characteristic compounds of PAHs for source analysis, and the main source was attributed to fuel combustion. Average commercial use of sediment quality benchmarks (mSQG-Q) on the PAHs risk assessment of Liaohe Basin was applied, fluorene and pyrene showed the potential of low-level ecological effects. In wet season, Fushun segment L3-1 points have a higher ecological risk. In dry season, Shenyang segment L1-1 point, Fushun segment L3-1 point and L3-2 point pose a strong negative effect.
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