Qian Xiao, Liang Baocui, Liu Xuan, Liu Xinhui, Wang Juan, Liu Fei, Cui Baoshan
State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing, 100875, People's Republic of China.
Département Génie Mathématique, Institut National des Sciences Appliquées de Rouen, Normandie, France.
Environ Sci Pollut Res Int. 2017 Jul;24(20):17153-17165. doi: 10.1007/s11356-017-9378-6. Epub 2017 Jun 6.
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 with an average of 2125.4 ng g, 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.
对海河表层沉积物中多环芳烃（PAHs）的分布、来源及生态风险进行了调查。总PAH浓度在171.4至9511.2 ng/g之间，平均为2125.4 ng/g，与世界其他已报道河流相比，表明海河污染严重。PAH污染物在17个采样点之间差异显著，高值出现在工业区和人口密集区。PAHs的组成特点是四环和五环PAHs含量高，苯并[a]蒽、 Chrysene和苯并[a]芘是主要成分。分子诊断比率证实，海河沉积物中的PAHs来源于混合源，主要包括各种燃烧过程。使用沉积物质量指南进行的生态风险评估表明，沉积物中的PAHs在大多数调查区域可能会对水生生物造成一定的负面影响。
