Yang Yi, Ligouis Bertrand, Pies Carmen, Achten Christine, Hofmann Thilo
Department of Environmental Geosciences, Vienna University, Austria.
Chemosphere. 2008 May;71(11):2158-67. doi: 10.1016/j.chemosphere.2008.01.010. Epub 2008 Feb 15.
Organic petrographic analysis was applied to provide direct information on carbonaceous geosorbents for PAHs in river floodplain soils. The anthropogenic OM group (primarily coal and coal-derived particles) displayed large volume amounts for all the soil samples. Distinct PAH concentrations with similar PAH distribution patterns were determined in grain size and density fractions for each sample. Two-ring PAHs had stronger correlation to organic carbon (OC) than black carbon (BC) contents, while heavier PAHs showed correlation to BC, rather than OC. In this study, we combined grain size and density separation, PAH determinations, TOC and BC measurements, and organic petrographic identification, and concluded that two-ring PAHs in soils were associated to coal particles. Other heavier PAHs could be more controlled by black carbon (BC), which were mostly coal-derived particles from former coal mining and coal industrial activity.
应用有机岩相分析来提供关于河漫滩土壤中多环芳烃的碳质地质吸附剂的直接信息。人为来源的有机物质组（主要是煤和煤衍生颗粒）在所有土壤样品中显示出大量存在。针对每个样品，在粒度和密度级分中测定了具有相似多环芳烃分布模式的不同多环芳烃浓度。二环多环芳烃与有机碳（OC）的相关性比与黑碳（BC）含量的相关性更强，而较重的多环芳烃与黑碳的相关性更强，而非与有机碳相关。在本研究中，我们结合了粒度和密度分离、多环芳烃测定、总有机碳和黑碳测量以及有机岩相鉴定，得出土壤中的二环多环芳烃与煤颗粒有关。其他较重的多环芳烃可能更多地受黑碳（BC）控制，黑碳主要是来自以前煤炭开采和煤炭工业活动的煤衍生颗粒。
