The investigation conducted was dialed to quantitative and qualitative evaluation of 15 priority polycyclic aromatic hydrocarbons (PAHs) and Potentially Toxic Elements (Cu, Pb, Zn, Cd, Ni and Cr) is soils and cryoconites on “St. Kliment Ohridski” Antarctic station territory and its vicinities. Estimation of benzo(a)pyrene (BaP) – equivalents, PAHs and different PAHs isomer pair ratios were used for identification of general toxicity, nature and origin of individual PAHs and their groups. Total concentrations of PAHs in BaP – equivalents showed, that ∑15PAH of all selected points was higher than the threshold concentration (20 μg×kg-1 - Russian environmental legislation) for benzo(a)pyrene. Different PAHs isomer ratios showed the natural (petrogenic) source of PAHs at all soils examples (except Cryosol Toxic Transportic). The maximum content among potentially toxic elements was recorded for Zn (75.7 mg×kg-1 at L26), the minimum for Cd (0.201 mg×kg-1 at L1A). Average concentrations of potentially toxic elements are generally lower compared to the results of previous studies. Application of Igeo index, characterizes the majority of the studied soils as unpolluted or practically unpolluted. Data obtained indicates that there is no current critical anthropogenic load on the environmental components of the landscapes investigated.

中文翻译：

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保加利亚南极站“ St. Kliment Ohridski”（南极半岛）附近土壤中的多环芳烃和潜在的有毒元素

所进行的研究旨在对15种优先多环芳烃（PAHs）进行定量和定性评估，“ St。克里门特·奥赫里斯基（Kliment Ohridski）”南极站地区及其附近。苯并（a）py（BaP）的当量，多环芳烃和不同的多环芳烃异构体对比率用于估计一般毒性，单个多环芳烃及其基团的性质和来源。在BaP中的PAHs的总浓度-等效值表明，所有选定点的∑15PAH均高于苯并（a）re的阈值浓度（20μg×kg-1-俄罗斯环境法规）。不同土壤中PAHs的异构体比例不同，表明在所有土壤实例中，PAHs的天然来源（成岩作用）（Cryosol Toxic Transportic除外）。记录到锌中潜在毒性元素的最大含量（L26为75.7 mg×kg-1），镉的最小含量（L1A为0.201 mg×kg-1）。与以前的研究结果相比，潜在有毒元素的平均浓度通常较低。Igeo指数的应用将大多数被研究的土壤表征为未污染或几乎未污染的土壤。所获得的数据表明，在所调查景观的环境成分上没有当前的关键人为负荷。