Institute of Environmental Assessment and Water Research (IDÆA-CSIC), Jordi Girona 18, 08034 Barcelona, Catalonia, Spain.
Environ Pollut. 2011 May;159(5):1234-40. doi: 10.1016/j.envpol.2011.01.035. Epub 2011 Feb 24.
European alpine lake systems are used as indicators of air quality over the continent. Preliminary data showed high polycyclic aromatic hydrocarbons (PAH) loads in the High Tatras (Eastern Europe) in comparison to other mountain regions. Here, insight on the spatial distribution of PAH is provided from analysis of top-core sediments of 27 alpine lakes distributed along the High Tatras. Top-core sediment concentrations were higher than those in deep-cores, and they were higher than those observed in other European high mountain regions. The PAH profiles were uniform and comparable to those observed in aerosols and snow, indicating that atmospheric deposition was the predominant PAH input pathway to the lakes. Good agreement between estimated atmospheric deposition and sedimentation fluxes was observed. However, in several lakes in the western range higher sediment fluxes may correspond to higher PAH depositions levels. The higher concentrations may also reflect inputs from potential emission source areas.
欧洲高山湖泊系统被用作欧洲大陆空气质量的指标。初步数据显示，与其他山区相比，塔特拉山脉（东欧）的多环芳烃（PAH）负荷很高。在这里，通过分析分布在塔特拉山脉的 27 个高山湖泊的顶芯沉积物，提供了对 PAH 空间分布的深入了解。顶芯沉积物的浓度高于深芯沉积物的浓度，也高于在其他欧洲高山地区观察到的浓度。PAH 分布曲线均匀，与气溶胶和雪中观察到的分布曲线相似，表明大气沉积是 PAH 进入湖泊的主要途径。观察到估计的大气沉积和沉积通量之间有良好的一致性。然而，在西部山脉的几个湖泊中，较高的沉积物通量可能对应着较高的 PAH 沉积水平。较高的浓度也可能反映了潜在排放源地区的输入。
