Accumulation of PAHs in Tundra Plants and Soils under the Influence of Coal Mining

Polycyclic aromatic hydrocarbons in the soil profiles (0–100 cm) from the industrial district of a large open-pit coal mine, China

“…Numerous investigations found that PAHs are widely distributed in the environmental media such as sediments, 10 agriculture soil, 11 urban soil, 12 roadside soil, 13,14 industry-affected soil, 15,16 dump sites, 17 and mine-impacted soil. [18][19][20] Soil pollution in the coal mine area is mainly ascribed to coal exploitation, processing, and utilization. 21 Mining-impacted soils and industrially impacted soils are among the poorly structured soils and generally abundant with a toxic substance such as PAHs.…”

Identification of the state of the soil-plant systems on the RUDN-University campus (based on PAH concentrations)

“…As a result, the distribution of PAHs in the ground parts of plants may be more "blurred". Soilroot 8,9,13,14,20,28,30,33 2,3,5,6,10,15,18,19,22,23,24,26,29 1,4,7,11,12,16,17,21,25,27,31,32 CCmax = 2.74;CCaverage =1.72 Rootstem 1,10 3,4,6,7,12,13,15,16,17,18,20,21,23,24,26,27,28,29,31,32,33 2,5,8,9,11,14,19,22,…”

“…The main processes leading to the penetration of hydrocarbons into plant organisms are phytofiltration and rhizomediation, which control the movement (albeit weak due to the high hydrophobicity of hydrocarbons) of solutions in the soilrootstem system [4]. A significant role is given to the destruction of PAHs in the rhizosphere with the participation of microbial communities, that is, plants themselves are only a part of the general system of PAH decomposition in soils [2,6]. When predicting these processes, it is necessary to take into account the heterogeneity of hydrocarbons distribution in the soil, the hydrophobicity of pollutants, the growth of vegetation, the possibility of PAHs coming from the atmosphere into plants, as well as the natural generation of PAHs by plant organisms themselves.…”

Effect of the Wildfires on Sandy Podzol Soils of Nadym Region, Yamalo-Nenets Autonomous District, Russia

“…North polar ecosystems are characterized by low resistance to anthropogenic impact against the background of high resource potential. ere are some works that aimed at peculiarities of PAH accumulation in tundra ecosystems under the different influences, for example, Yakovleva et al [26], but fire effect was not investigated yet. e main objective of this work is to investigate PAHs in the initial stage of the demutation postfire sequence of postpyrogenic soils.…”