Li Gongchen, Xia Xinghui, Yang Zhifeng, Wang Ran, Voulvoulis Nikolaos
State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China.
Environ Pollut. 2006 Dec;144(3):985-93. doi: 10.1016/j.envpol.2006.01.047. Epub 2006 Apr 5.
In this study, concentrations, distribution between different phases, transition along the Middle and Lower reaches of the Yellow River and possible sources of PAHs were assessed. Results demonstrated that the relative proportions of 15 PAHs in all stations of the main River were similar, with concentrations of benzo[a]pyrene all above drinking water standards in most of the stations sampled. PAHs concentrations in tributaries were higher than those in the corresponding sites in the main River. PAHs concentrations of suspended particles were mainly correlated with contents of total organic carbon. However, PAHs concentrations in sediments were mainly correlated to the volume of particles with size smaller than 0.01 mm. The distribution of PAHs in all media sampled indicated that sediments could act as a sink/source for PAHs in different sections and source analysis revealed that PAHs mainly originated from coal burning, although in some tributaries PAH inputs could come from combustion of petroleum.
本研究评估了黄河中下游多环芳烃（PAHs）的浓度、在不同相之间的分布、沿黄河中下游的变化以及可能的来源。结果表明，主河道各监测站15种多环芳烃的相对比例相似，大部分采样站的苯并[a]芘浓度均高于饮用水标准。支流中多环芳烃的浓度高于主河道相应点位。悬浮颗粒物中多环芳烃的浓度主要与总有机碳含量相关。然而，沉积物中多环芳烃的浓度主要与粒径小于0.01毫米的颗粒体积相关。所采集的所有介质中多环芳烃的分布表明，沉积物在不同河段可能是多环芳烃的汇/源，源分析表明多环芳烃主要源于煤炭燃烧，不过在一些支流中，多环芳烃的输入可能来自石油燃烧。
