The values of the benzo(a)pyrene total toxicity equivalent (B(a)P-TEQ) of polycyclic aromatic hydrocarbons (PAHs) in the surface layers of Moscow soils are given in this paper. The value of B(a)P-TEQ for eight potentially carcinogenic PAHs in soils ranges from 14.1 to 1995.6 μg/kg with an average value of 299.4 μg/kg and a median of 132.8 μg/kg. In the functional zones of the city, the greatest value of B(a)P-TEQ in soil is observed in the residential and transport areas, while the administrative districts with the highest level are the Southeastern and Central districts. The main contribution to the total toxicity equivalent of PAHs is made by dibenz(a,h)anthracene and benzo(a)pyrene. For 85% of the analyzed soils in the city, the value of ₈B(a)P-TPQ is <600 μg/kg, which, according to the Canadian Ministry of Ecology, corresponds to a carcinogenic risk for a person of less than 10^–6. For 15% of soils, this indicator lies in the range of 775.6–1995.6 μg/kg, which corresponds to risk in the range of 10^–6–10^–5.

中文翻译：

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莫斯科土壤中多环芳烃的苯并（a）py总毒性当量及对人类致癌风险的评估

本文给出了莫斯科土壤表层多环芳烃（PAHs）的苯并（a）py总毒性当量（B（a）P-TEQ）值。土壤中八种潜在致癌多环芳烃的B（a）P-TEQ值范围为14.1至1995.6μg/ kg，平均值为299.4μg/ kg，中位数为132.8μg/ kg。在城市的功能区中，在住宅区和交通区发现的土壤中B（a）P-TEQ的价值最大，而最高级别的行政区是东南部和中部地区。苯并（a，h）蒽和苯并（a）to对PAHs总毒性当量的主要贡献。对于城市中85％的分析土壤，值₈B（a）P-TPQ <600μg/ kg，据加拿大生态部称，这对应于小于10 ^–6的人的致癌风险。对于15％的土壤，该指标处于775.6–1995.6μg/ kg的范围内，对应于10 ^–6 –10 ^–5范围内的风险。