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Polycyclic Aromatic Hydrocarbons in Soils of Anthracite Deposit Dumps in Siberia
Eurasian Soil Science ( IF 1.4 ) Pub Date : 2021-06-24 , DOI: 10.1134/s1064229321060120
D. A. Sokolov , S. V. Morozov , E. V. Abakumov , V. A. Androkhanov

Abstract

The contents of 19 priority polycyclic aromatic hydrocarbons (PAHs) have been studied in soils (Spolic Technosols) and parent rocks of dumps at the Gorlovskoe anthracite deposit (Novosibirsk region). The bulk content of polyarenes in the analyzed soils is highly variable: from 100 to 74 622 ng/g. The absence of statistically significant relationships between PAH concentrations and the contents of carbon and physical clay (<0.01 mm) in the studied soils points to the specific processes of PAH formation upon coal transformation in soil-forming dump deposits. These processes produce bitumen lakes on the surface of dumps, in which the concentration of polyarenes may reach 864.4 mg/g. Cluster analysis with the use of the Jaccard similarity index and single-linkage clustering permitted us to group the studied objects according to the organic matter characteristics; the groups with chemogenic transformation of coal particles were distinguished by the Ward’s method. The principal component analysis proved that phenanthrene and 5–6-nucleus compounds have the closest correlation with the first component, whereas the second component correlates reliably with fluoranthene, naphthalene, anthracene, and pyrene. According to our results, the Phe/(Phe + Chr) ratio appears to be the most promising index for evaluating chemical transformation of coal in soils of anthracite deposits.



中文翻译:

西伯利亚无烟煤堆场土壤中的多环芳烃

摘要

已经研究了 Gorlovskoe 无烟煤矿床(新西伯利亚地区)的土壤 (Spolic Technosols) 和垃圾场母岩中 19 种优先多环芳烃 (PAH) 的含量。所分析土壤中聚芳烃的总含量变化很大:从 100 到 74 622 ng/g。研究土壤中多环芳烃浓度与碳含量和物理粘土(<0.01 毫米)之间没有统计学上的显着关系,这表明多环芳烃在成土垃圾沉积物中煤转化后形成的具体过程。这些过程在垃圾场表面产生沥青湖,其中聚芳烃的浓度可能达到 864.4 mg/g。使用 Jaccard 相似指数和单连锁聚类的聚类分析允许我们根据有机质特征对研究对象进行分组;用Ward方法区分了煤颗粒化学转化的组。主成分分析证明,菲和 5-6 核化合物与第一个成分的相关性最密切,而第二个成分与荧蒽、萘、蒽和芘的相关性可靠。根据我们的研究结果,Phe/(Phe + Chr) 比值似乎是评估无烟煤沉积土壤中煤化学转化的最有希望的指标。主成分分析证明,菲和 5-6 核化合物与第一个成分的相关性最密切,而第二个成分与荧蒽、萘、蒽和芘的相关性可靠。根据我们的研究结果,Phe/(Phe + Chr) 比值似乎是评估无烟煤沉积土壤中煤化学转化的最有希望的指标。主成分分析证明,菲和 5-6 核化合物与第一个成分的相关性最密切,而第二个成分与荧蒽、萘、蒽和芘的相关性可靠。根据我们的研究结果,Phe/(Phe + Chr) 比值似乎是评估无烟煤沉积土壤中煤化学转化的最有希望的指标。

更新日期:2021-06-25
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