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<p>This study investigated the concentration levels of 16 PAHs listed in the USEPA in the soil of vegetable greenhouses in Shenyang City, Northeast China. Meanwhile, the carcinogenic risk of different pollution sources to the locals was based on the positive matrix factor method (PMF) and the incremental lifetime carcinogenic risks (ILCRs) model to clarify the main source of carcinogenic risk. Results showed that the total concentrations of 16 PAHs (ΣPAHs) in the soil of vegetable greenhouses were 38–1684&#xa0;ng/g, with the mean values of 497&#xa0;ng/g. The PMF revealed that PAHs contamination in the study area can be classified into 5 main sources, including diesel/coal combustion, biomass combustion, coking emission, gasoline combustion and petroleum source, accounting for 33.3%, 27.8%, 16.5%, 12.6% and 9.8% of the total sources of PAHs, respectively. Based on the results of PMF and ILCR models, the carcinogenic risk of PAHs pollution input pathways in the soil of vegetable greenhouses in Shenyang was quantified. Among the five input pathways, diesel/coal combustion sources had the highest risk, contributing 75.1% of the total carcinogenic risk, which requires special attention.</p>

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Source Apportionment and Human Health Risk Assessment of Polycyclic Aromatic Hydrocarbons in Vegetable Greenhouse Soils in Shenyang, China

  • 期刊论文

  • 发表日期：

    2025年5月6日

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  • Xu Zhang,
  • Xueying Song,
  • Huiyu Zhang,
  • Yongxia Hou,
  • Yushuang Li,
  • Xiaoxu Zhao

摘要

This study investigated the concentration levels of 16 PAHs listed in the USEPA in the soil of vegetable greenhouses in Shenyang City, Northeast China. Meanwhile, the carcinogenic risk of different pollution sources to the locals was based on the positive matrix factor method (PMF) and the incremental lifetime carcinogenic risks (ILCRs) model to clarify the main source of carcinogenic risk. Results showed that the total concentrations of 16 PAHs (ΣPAHs) in the soil of vegetable greenhouses were 38–1684 ng/g, with the mean values of 497 ng/g. The PMF revealed that PAHs contamination in the study area can be classified into 5 main sources, including diesel/coal combustion, biomass combustion, coking emission, gasoline combustion and petroleum source, accounting for 33.3%, 27.8%, 16.5%, 12.6% and 9.8% of the total sources of PAHs, respectively. Based on the results of PMF and ILCR models, the carcinogenic risk of PAHs pollution input pathways in the soil of vegetable greenhouses in Shenyang was quantified. Among the five input pathways, diesel/coal combustion sources had the highest risk, contributing 75.1% of the total carcinogenic risk, which requires special attention.