Study of properties determining the susceptibility of cryolithozone soils to oil pollution
V. A. ANDROKHANOV1, D. A. SOKOLOV1,2, E. A. GURKOVA1, G. V. ERMAKOVA1, I. N. GOSSEN1, N. A. SOKOLOVA1
1Institute of Soil Science and Agrochemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
2Federal Research Centre "Kola Science Centre of the Russian Academy of Sciences", Research Institute of Agriculture and Ecology of the Arctic, Norilsk, Russia
Keywords: frozen soils, organic pollutants, oil products, Siberia, soil self-purification, remediation, oil pollution, the Arctic
Abstract
At present, in connection with the active development of the Russian Arctic, issues related to prevention and elimination of the consequences caused by disturbances of vulnerable northern ecosystems are becoming increasingly urgent. Soils deserve attention on the first-priority basis. On the one hand, soils are the basis of any terrestrial ecosystem, on the other hand, under the harsh conditions of the Far North, their self-restoration is slow, and effective reclamation measures are costly. In the work, the most common environmental problem of the northern territories of Siberia is considered: the pollution of soils with oil products. The properties of automorphous and hydromorphous organogenic, loamy, stony, sandy, and sandy loam soils widely occurring in the cryolithozone are investigated. It is noted that among soil properties, the greatest role in the fixation of oil products is played by total carbon content and cation exchange capacity, while the increased density of soils prevents the introduction and accumulation of oil products. Based on the analysis of literature data and statistical processing of own materials, recommendations on soil remediation at the sites contaminated with oil products to different extents are proposed.
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