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  • Title: [Characters of soil-vegetable transfer and accumulation of polycyclic aromatic hydrocarbons].
    Author: Yin CQ, Jiang X, Yang XL, Wang CY, Bian YR, Wang F.
    Journal: Huan Jing Ke Xue; 2008 Nov; 29(11):3240-5. PubMed ID: 19186834.
    Abstract:
    The transfer and accumulation of polycyclic aromatic hydrocarbons (PAHs) from aged contaminated agricultural soil to vegetable was studied. The results show that the positive correlation between the PAHs concentrations in tested vegetables and those in the corresponding soils is present. The PAHs concentrations in contaminated soils are significantly (p < 0.05) higher than that in roots, stems and leaves of vegetables, and the PAHs concentrations in roots are also significantly (p < 0.05) higher than that in stems and leaves. The ratio of sum of low molecular weight PAHs to total PAHs concentrations (Sigma LMW-PAHs/Sigma PAHs) in polluted vegetable roots is higher than that in corresponding soils (p < 0.05), and LMW-PAHs are more easily accumulated in vegetable roots than HMW-PAHs (high molecular weitht PAHs). The distinction of PAHs concentrations among the four selected leafy vegetables in the same tested soils does not achieve the significant level.
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