Abstract For the first time, the concentrations of 11 polycyclic aromatic hydrocarbons (PAHs) in urban sealed soils (ekranozems) and asphalt concrete pavement in eastern Moscow have been determined. The average total PAH content in ekranozems is 14.5 mg/kg, which is 4.5 times higher than in nonpaved soils and 142 times higher than in background soils. The accumulations under asphalt concrete belong to the naphthalene PAH type of pollution, while phenanthrene predominates in background sod-podzolic soils. The maximum total PAH content is registered under asphalt concrete in the humus-accumulative horizon (AYur). Technogenic anomalies with high and very high benzo(a)pyrene concentrations (0.25–0.5 and >0.5 mg/kg, or 12.5–25 and >25 MPC, respectively) are noted in ekranozems of traffic and recreation zones. The removal of asphalt concrete would change the redox conditions and boost the migration capacity of PAHs; their subsequent inclusion in the biological cycle and food chains poses threats to the public health.

中文翻译：

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沥青混凝土密封城市土壤中的多环芳烃

摘要 首次测定了莫斯科东部城市密封土壤（ekranozems）和沥青混凝土路面中11种多环芳烃（PAHs）的浓度。ekranozems 中 PAH 的平均总含量为 14.5 mg/kg，比未铺砌的土壤高 4.5 倍，比背景土壤高 142 倍。沥青混凝土下的积累属于萘类 PAH 类型的污染，而菲在背景草皮灰化土壤中占主导地位。最大总多环芳烃含量记录在沥青混凝土下腐殖质积累层 (AYur) 中。在交通和娱乐区的 ekranozems 中注意到具有高和非常高的苯并 (a) 芘浓度（分别为 0.25–0.5 和 >0.5 mg/kg，或 12.5–25 和 >25 MPC）的技术异常。沥青混凝土的去除会改变氧化还原条件，提高多环芳烃的迁移能力；它们随后被纳入生物循环和食物链，对公众健康构成威胁。