Degradation of polycyclic aromatic hydrocarbons (PAH) such as phenanthrene, anthracene, fluoran-thene, pyrene, benzo[a]anthracene, chryzene, benzo[b]fluoranthene, benzo[e]pyrene, benzo[k]fluoranthene and benzo[a]pyrene) in the surface layer (5 cm) of soil polluted with aircraft fuel in an amount of 10 ml/kg was analyzed. The direct influence of solubility in water on the degree of its loss was proven. The clear influence of the soil type – directly related, among other things, to organic matter content and contribution of alluvial fraction – on the decomposition of 5-ring PAHs. Half-lives ranged from 152 to 313 for 3-ring PAHs and from 117 to 492 for 4- and 5-ring PAHs.
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