[1]CUI Jun,ZHANG Weiting,WANG Yanhua,et al.Sediment Records and Sources of Polycyclic Aromatic Hydrocarbons in the Small Catchment of Dianchi Lake[J].Research of Soil and Water Conservation,2018,25(01):202-207.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
25
Number of periods:
2018 01
Page number:
202-207
Column:
Public date:
2018-02-28
- Title:
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Sediment Records and Sources of Polycyclic Aromatic Hydrocarbons in the Small Catchment of Dianchi Lake
- Author(s):
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CUI Jun1, ZHANG Weiting2, WANG Yanhua1,3, YANG Hao1,3, LIU Yuping1, QIU Yu1
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1. School of Geography Science, Nanjing Normal University, Nanjing 210023, China;
2. College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China;
3. Jiangsu Provincial Key Laboratory of Materials Cycling and Pollution Control, Nanjing 210023, China
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- Keywords:
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Dianchi Lake; small catchment; polycyclic aromatic hydrocarbons; vertical variation; source identification
- CLC:
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X592
- DOI:
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- Abstract:
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This study was designed to measure the concentrations of 16 priority polycyclic aromatic hydrocarbons (PAHs) identified by the USEPA in the sediment cores from the Dashiba catchment of Dianchi watershed. Meanwhile, the possible sources and risk assessment of PAHs were also discussed. The total PAH concentrations in the sediment core ranged from 388.64~1 440.38 ng/g, and naphthalene and phenanthrene were the dominant compounds throughout the cores. The PAHs in the sediment core were mainly composed of 2~3 rings. The concentrations of 2~3 rings PAHs in the sediment cores were 127.86~1 130.12 ng/g. The distributions of FLA/(FLA+PYR), BaA/(BaA+CHR) and IcdP/(IcdP+BghiP) show that the main sources of PAHs were from the combustion of fossil fuels, coal and biomass. According to the results of risk assessment, the PAHs may not induce adverse effects on the aquatic ecosystem in the Dashiba catchment.