title: [Spatial distribution and risk assessment of polycyclic aromatic hydrocarbons in partial surface sediments of Liaohe River].
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.
authors: College of Water Science, Beijing Normal University, Beijing 100875, China. wujiangyue2005@126.com
authors: Jiang-Yue
authors: JY
authors: Wu
authors: Zheng-Tao
authors: ZT
authors: Liu
authors: Jun-Li
authors: JL
authors: Zhou
authors: Fu
authors: F
authors: Gao
mesh_terms: D002681:China; D004784:Environmental Monitoring / Q000379:methods; D008401:Gas Chromatography-Mass Spectrometry; D019015:Geologic Sediments / Q000032:analysis*; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D018570:Risk Assessment; D045483:Rivers; D012621:Seasons; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D011084:Polycyclic Aromatic Hydrocarbons; D014874:Water Pollutants, Chemical