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Environ Sci Pollut Res Int. 2017 Jul;24(20):17153-17165. doi: 10.1007/s11356-017-9378-6. Epub 2017 Jun 6.

Distribution, sources, and ecological risk assessment of polycyclic aromatic hydrocarbons in surface sediments from the Haihe River, a typical polluted urban river in Northern China.

Author information

1
State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing, 100875, People's Republic of China.
2
Département Génie Mathématique, Institut National des Sciences Appliquées de Rouen, Normandie, France.
3
State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing, 100875, People's Republic of China. xhliu@bnu.edu.cn.

Abstract

The distribution, sources, and ecological risk of polycyclic aromatic hydrocarbons (PAHs) were investigated in surface sediments from the Haihe River. Total PAH concentrations varied from 171.4 to 9511.2 ng g-1 with an average of 2125.4 ng g-1, suggesting serious pollution of the Haihe River in comparison with other reported rivers worldwide. PAH contaminants differed significantly among 17 sampling locations with high values occurring in industrial areas and densely populated areas. The composition of PAHs was characterized by high abundance of 4-ring and 5-ring PAHs, and benzo[a]anthracene, chrysene, and benzo[a]pyrene were the predominant components. Molecular diagnostic ratios have confirmed that PAHs in Haihe River sediments resulted from mixed sources, primarily including various combustion processes. Ecological risk assessment using the Sediments Quality Guidelines indicated that PAHs in sediments could cause certain negative effects on aquatic organisms in most survey regions.

KEYWORDS:

Ecological risk assessment; Polycyclic aromatic hydrocarbons; Sediments; Source identification; Urban river

PMID:
28585014
DOI:
10.1007/s11356-017-9378-6
[Indexed for MEDLINE]

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